137321649237 has 16 divisors (see below), whose sum is σ = 192823520960. Its totient is φ = 86688340992.

The previous prime is 137321649217. The next prime is 137321649239. The reversal of 137321649237 is 732946123731.

It is not a de Polignac number, because 137321649237 - 2¹² = 137321645141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137321649239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449638 + ... + 690519.

It is an arithmetic number, because the mean of its divisors is an integer number (12051470060).

Almost surely, 2^137321649237 is an apocalyptic number.

It is an amenable number.

137321649237 is a deficient number, since it is larger than the sum of its proper divisors (55501871723).

137321649237 is a wasteful number, since it uses less digits than its factorization.

137321649237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142292.

The product of its digits is 1143072, while the sum is 48.

The spelling of 137321649237 in words is "one hundred thirty-seven billion, three hundred twenty-one million, six hundred forty-nine thousand, two hundred thirty-seven".