137238844 has 6 divisors (see below), whose sum is σ = 240167984. Its totient is φ = 68619420.

The previous prime is 137238823. The next prime is 137238851. The reversal of 137238844 is 448832731.

It is a junction number, because it is equal to n+sod(n) for n = 137238797 and 137238806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17154852 + ... + 17154859.

Almost surely, 2^137238844 is an apocalyptic number.

It is an amenable number.

137238844 is a deficient number, since it is larger than the sum of its proper divisors (102929140).

137238844 is a wasteful number, since it uses less digits than its factorization.

137238844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34309715 (or 34309713 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 137238844 is about 11714.8983777069. The cubic root of 137238844 is about 515.8130795432.

The spelling of 137238844 in words is "one hundred thirty-seven million, two hundred thirty-eight thousand, eight hundred forty-four".