137397502 has 32 divisors (see below), whose sum is σ = 244516320. Its totient is φ = 57185280.

The previous prime is 137397499. The next prime is 137397517. The reversal of 137397502 is 205793731.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8874 + ... + 18802.

It is an arithmetic number, because the mean of its divisors is an integer number (7641135).

Almost surely, 2^137397502 is an apocalyptic number.

137397502 is a deficient number, since it is larger than the sum of its proper divisors (107118818).

137397502 is a wasteful number, since it uses less digits than its factorization.

With its successor (137397503) it forms an eRAP, since the sums of their prime factors are consecutive (9996 and 9997).

137397502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9996.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 137397502 is about 11721.6680553580. The cubic root of 137397502 is about 516.0117753658.

The spelling of 137397502 in words is "one hundred thirty-seven million, three hundred ninety-seven thousand, five hundred two".