137690928 has 50 divisors (see below), whose sum is σ = 398521244. Its totient is φ = 45896544.

The previous prime is 137690911. The next prime is 137690947. The reversal of 137690928 is 829096731.

137690928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51826 + ... + 54417.

Almost surely, 2^137690928 is an apocalyptic number.

137690928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

137690928 is an abundant number, since it is smaller than the sum of its proper divisors (260830316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137690928 is a wasteful number, since it uses less digits than its factorization.

137690928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106263 (or 106248 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 137690928 is about 11734.1777726435. The cubic root of 137690928 is about 516.3788456353.

The spelling of 137690928 in words is "one hundred thirty-seven million, six hundred ninety thousand, nine hundred twenty-eight".