1304251511145 has 32 divisors (see below), whose sum is σ = 2278047227904. Its totient is φ = 631937841600.

The previous prime is 1304251511141. The next prime is 1304251511219. The reversal of 1304251511145 is 5411151524031.

It is not a de Polignac number, because 1304251511145 - 2² = 1304251511141 is a prime.

It is a super-2 number, since 2×1304251511145² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1304251511141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2420361 + ... + 2909750.

It is an arithmetic number, because the mean of its divisors is an integer number (71188975872).

Almost surely, 2^{1304251511145} is an apocalyptic number.

1304251511145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304251511145 is a deficient number, since it is larger than the sum of its proper divisors (973795716759).

1304251511145 is a wasteful number, since it uses less digits than its factorization.

1304251511145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5331613.

The product of its (nonzero) digits is 12000, while the sum is 33.

The spelling of 1304251511145 in words is "one trillion, three hundred four billion, two hundred fifty-one million, five hundred eleven thousand, one hundred forty-five".