137977492 has 12 divisors (see below), whose sum is σ = 241948000. Its totient is φ = 68849496.

The previous prime is 137977481. The next prime is 137977513. The reversal of 137977492 is 294779731.

It is a super-2 number, since 2×137977492² = 38075576597220128, which contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 32568 + ... + 36559.

Almost surely, 2^137977492 is an apocalyptic number.

It is an amenable number.

137977492 is a deficient number, since it is larger than the sum of its proper divisors (103970508).

137977492 is a wasteful number, since it uses less digits than its factorization.

137977492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69630 (or 69628 counting only the distinct ones).

The product of its digits is 666792, while the sum is 49.

The square root of 137977492 is about 11746.3820813049. The cubic root of 137977492 is about 516.7368286727.

The spelling of 137977492 in words is "one hundred thirty-seven million, nine hundred seventy-seven thousand, four hundred ninety-two".