1156560156 has 18 divisors (see below), whose sum is σ = 2923527152. Its totient is φ = 385520040.

The previous prime is 1156560151. The next prime is 1156560169. The reversal of 1156560156 is 6510656511.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 32126671 = 1156560156 / (1 + 1 + 5 + 6 + 5 + 6 + 0 + 1 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 1156560156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156560151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16063300 + ... + 16063371.

Almost surely, 2^1156560156 is an apocalyptic number.

It is an amenable number.

1156560156 is an abundant number, since it is smaller than the sum of its proper divisors (1766966996).

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

1156560156 is a wasteful number, since it uses less digits than its factorization.

1156560156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32126681 (or 32126676 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1156560156 is about 34008.2365905673. The cubic root of 1156560156 is about 1049.6779529352.

The spelling of 1156560156 in words is "one billion, one hundred fifty-six million, five hundred sixty thousand, one hundred fifty-six".