1156253356 has 12 divisors (see below), whose sum is σ = 2023789320. Its totient is φ = 578027840.

The previous prime is 1156253321. The next prime is 1156253363. The reversal of 1156253356 is 6533526511.

It is a super-2 number, since 2×1156253356² = 2673843646522525472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5796 + ... + 48436.

It is an arithmetic number, because the mean of its divisors is an integer number (168649110).

Almost surely, 2^1156253356 is an apocalyptic number.

It is an amenable number.

1156253356 is a deficient number, since it is larger than the sum of its proper divisors (867535964).

1156253356 is a wasteful number, since it uses less digits than its factorization.

1156253356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49424 (or 49422 counting only the distinct ones).

The product of its digits is 81000, while the sum is 37.

The square root of 1156253356 is about 34003.7256194082. The cubic root of 1156253356 is about 1049.5851289190.

Adding to 1156253356 its reverse (6533526511), we get a palindrome (7689779867).

The spelling of 1156253356 in words is "one billion, one hundred fifty-six million, two hundred fifty-three thousand, three hundred fifty-six".