1156816052 has 24 divisors (see below), whose sum is σ = 2314514496. Its totient is φ = 495589248.

The previous prime is 1156816043. The next prime is 1156816091. The reversal of 1156816052 is 2506186511.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86828 + ... + 99260.

It is an arithmetic number, because the mean of its divisors is an integer number (96438104).

Almost surely, 2^1156816052 is an apocalyptic number.

It is an amenable number.

1156816052 is an abundant number, since it is smaller than the sum of its proper divisors (1157698444).

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

1156816052 is a wasteful number, since it uses less digits than its factorization.

1156816052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15767 (or 15765 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 1156816052 is about 34011.9986475361. The cubic root of 1156816052 is about 1049.7553631129.

The spelling of 1156816052 in words is "one billion, one hundred fifty-six million, eight hundred sixteen thousand, fifty-two".