137391357 has 16 divisors (see below), whose sum is σ = 190008000. Its totient is φ = 88201344.

The previous prime is 137391343. The next prime is 137391361. The reversal of 137391357 is 753193731.

137391357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 137391357 - 2⁴ = 137391341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137391367) 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, 34569 + ... + 38337.

It is an arithmetic number, because the mean of its divisors is an integer number (11875500).

Almost surely, 2^137391357 is an apocalyptic number.

It is an amenable number.

137391357 is a deficient number, since it is larger than the sum of its proper divisors (52616643).

137391357 is a wasteful number, since it uses less digits than its factorization.

137391357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220.

The product of its digits is 59535, while the sum is 39.

The square root of 137391357 is about 11721.4059310306. The cubic root of 137391357 is about 516.0040825048.

The spelling of 137391357 in words is "one hundred thirty-seven million, three hundred ninety-one thousand, three hundred fifty-seven".