1157992982 has 8 divisors (see below), whose sum is σ = 1737144552. Its totient is φ = 578944800.

The previous prime is 1157992949. The next prime is 1157992993. The reversal of 1157992982 is 2892997511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1157992982² = 2681895492722504648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15182 + ... + 50462.

It is an arithmetic number, because the mean of its divisors is an integer number (217143069).

Almost surely, 2^1157992982 is an apocalyptic number.

1157992982 is a deficient number, since it is larger than the sum of its proper divisors (579151570).

1157992982 is a wasteful number, since it uses less digits than its factorization.

1157992982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51694.

The product of its digits is 816480, while the sum is 53.

The square root of 1157992982 is about 34029.2959374713. The cubic root of 1157992982 is about 1050.1112450539. Note that the first 3 decimals are identical.

The spelling of 1157992982 in words is "one billion, one hundred fifty-seven million, nine hundred ninety-two thousand, nine hundred eighty-two".