1156517914 has 12 divisors (see below), whose sum is σ = 1778125662. Its totient is φ = 564153440.

The previous prime is 1156517863. The next prime is 1156517927. The reversal of 1156517914 is 4197156511.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 567630625 + 588887289 = 23825^2 + 24267^2 .

It is a super-2 number, since 2×1156517914² = 2675067370805822792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168637 + ... + 175360.

Almost surely, 2^1156517914 is an apocalyptic number.

1156517914 is a deficient number, since it is larger than the sum of its proper divisors (621607748).

1156517914 is an equidigital number, since it uses as much as digits as its factorization.

1156517914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344081 (or 344040 counting only the distinct ones).

The product of its digits is 37800, while the sum is 40.

The square root of 1156517914 is about 34007.6155294663. The cubic root of 1156517914 is about 1049.6651733619.

The spelling of 1156517914 in words is "one billion, one hundred fifty-six million, five hundred seventeen thousand, nine hundred fourteen".