137909328 has 40 divisors (see below), whose sum is σ = 367762176. Its totient is φ = 44486400.

The previous prime is 137909309. The next prime is 137909329. The reversal of 137909328 is 823909731.

It is a self number, because there is not a number n which added to its sum of digits gives 137909328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137909329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44853 + ... + 47828.

Almost surely, 2^137909328 is an apocalyptic number.

It is an amenable number.

137909328 is an abundant number, since it is smaller than the sum of its proper divisors (229852848).

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

137909328 is a wasteful number, since it uses less digits than its factorization.

137909328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92723 (or 92717 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 137909328 is about 11743.4802337297. The cubic root of 137909328 is about 516.6517214315.

The spelling of 137909328 in words is "one hundred thirty-seven million, nine hundred nine thousand, three hundred twenty-eight".