1301803413156 has 81 divisors (see below), whose sum is σ = 3417545586091. Its totient is φ = 433872858888.

The previous prime is 1301803413151. The next prime is 1301803413179. The reversal of 1301803413156 is 6513143081031.

The square root of 1301803413156 is 1140966.

It is a perfect power (a square), and thus also a powerful number.

1301803413156 is a `hidden beast` number, since 1 + 301 + 8 + 0 + 34 + 1 + 315 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (81).

It is a super-2 number, since 2×1301803413156² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1301803413156.

It is not an unprimeable number, because it can be changed into a prime (1301803413151) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 184832971 + ... + 184840013.

Almost surely, 2^{1301803413156} is an apocalyptic number.

1301803413156 is the 1140966-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1301803413156

1301803413156 is an abundant number, since it is smaller than the sum of its proper divisors (2115742172935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301803413156 is an frugal number, since it uses more digits than its factorization.

1301803413156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14114 (or 7048 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Multiplying 1301803413156 by its sum of digits (36), we get a square (46864922873616 = 6845796²).

1301803413156 divided by its sum of digits (36) gives a square (36161205921 = 190161²).

Adding to 1301803413156 its reverse (6513143081031), we get a palindrome (7814946494187).

The spelling of 1301803413156 in words is "one trillion, three hundred one billion, eight hundred three million, four hundred thirteen thousand, one hundred fifty-six".