137939727 has 16 divisors (see below), whose sum is σ = 188023680. Its totient is φ = 89925600.

The previous prime is 137939719. The next prime is 137939731. The reversal of 137939727 is 727939731.

It is not a de Polignac number, because 137939727 - 2³ = 137939719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137939777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30652 + ... + 34862.

It is an arithmetic number, because the mean of its divisors is an integer number (11751480).

Almost surely, 2^137939727 is an apocalyptic number.

137939727 is a deficient number, since it is larger than the sum of its proper divisors (50083953).

137939727 is a wasteful number, since it uses less digits than its factorization.

137939727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454.

The product of its digits is 500094, while the sum is 48.

The square root of 137939727 is about 11744.7744550502. The cubic root of 137939727 is about 516.6896800479.

The spelling of 137939727 in words is "one hundred thirty-seven million, nine hundred thirty-nine thousand, seven hundred twenty-seven".