1137891512 has 32 divisors (see below), whose sum is σ = 2231539200. Its totient is φ = 542930784.

The previous prime is 1137891497. The next prime is 1137891527. The reversal of 1137891512 is 2151987311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1137891497) and next prime (1137891527).

It is a super-2 number, since 2×1137891512² = 2589594186163292288, which contains 22 as substring.

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, 73733 + ... + 87819.

It is an arithmetic number, because the mean of its divisors is an integer number (69735600).

Almost surely, 2^1137891512 is an apocalyptic number.

It is an amenable number.

1137891512 is a deficient number, since it is larger than the sum of its proper divisors (1093647688).

1137891512 is a wasteful number, since it uses less digits than its factorization.

1137891512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14555 (or 14551 counting only the distinct ones).

The product of its digits is 15120, while the sum is 38.

The square root of 1137891512 is about 33732.6475687871. The cubic root of 1137891512 is about 1043.9994886547. Note that the first 3 decimals are identical.

The spelling of 1137891512 in words is "one billion, one hundred thirty-seven million, eight hundred ninety-one thousand, five hundred twelve".