1301161056 has 48 divisors (see below), whose sum is σ = 3678285744. Its totient is φ = 400356864.

The previous prime is 1301161051. The next prime is 1301161061. The reversal of 1301161056 is 6501611031.

It is an interprime number because it is at equal distance from previous prime (1301161051) and next prime (1301161061).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301161051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520051 + ... + 522546.

It is an arithmetic number, because the mean of its divisors is an integer number (76630953).

Almost surely, 2^1301161056 is an apocalyptic number.

1301161056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1301161056 is an abundant number, since it is smaller than the sum of its proper divisors (2377124688).

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

1301161056 is a wasteful number, since it uses less digits than its factorization.

1301161056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042623 (or 1042615 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1301161056 is about 36071.6101110000. The cubic root of 1301161056 is about 1091.7177013170.

Adding to 1301161056 its reverse (6501611031), we get a palindrome (7802772087).

The spelling of 1301161056 in words is "one billion, three hundred one million, one hundred sixty-one thousand, fifty-six".