1156313052 has 36 divisors (see below), whose sum is σ = 2931606496. Its totient is φ = 384289920.

The previous prime is 1156312981. The next prime is 1156313069. The reversal of 1156313052 is 2503136511.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35524 + ... + 59787.

Almost surely, 2^1156313052 is an apocalyptic number.

1156313052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1156313052 is an abundant number, since it is smaller than the sum of its proper divisors (1775293444).

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

1156313052 is a wasteful number, since it uses less digits than its factorization.

1156313052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95658 (or 95653 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1156313052 is about 34004.6033942465. The cubic root of 1156313052 is about 1049.6031915565.

Adding to 1156313052 its reverse (2503136511), we get a palindrome (3659449563).

The spelling of 1156313052 in words is "one billion, one hundred fifty-six million, three hundred thirteen thousand, fifty-two".