137021924 has 12 divisors (see below), whose sum is σ = 258233724. Its totient is φ = 63240864.

The previous prime is 137021917. The next prime is 137021933. The reversal of 137021924 is 429120731.

137021924 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 88021924 + 49000000 = 9382^2 + 7000^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317467 + ... + 1317570.

It is an arithmetic number, because the mean of its divisors is an integer number (21519477).

Almost surely, 2^137021924 is an apocalyptic number.

It is an amenable number.

137021924 is a deficient number, since it is larger than the sum of its proper divisors (121211800).

137021924 is a wasteful number, since it uses less digits than its factorization.

137021924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635054 (or 2635052 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 137021924 is about 11705.6364201183. The cubic root of 137021924 is about 515.5411711606.

The spelling of 137021924 in words is "one hundred thirty-seven million, twenty-one thousand, nine hundred twenty-four".