137879057 has 4 divisors (see below), whose sum is σ = 141605556. Its totient is φ = 134152560.

The previous prime is 137879033. The next prime is 137879111. The reversal of 137879057 is 750978731.

137879057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81793936 + 56085121 = 9044^2 + 7489^2 .

It is a cyclic number.

It is not a de Polignac number, because 137879057 - 2²⁰ = 136830481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137879017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863194 + ... + 1863267.

It is an arithmetic number, because the mean of its divisors is an integer number (35401389).

Almost surely, 2^137879057 is an apocalyptic number.

It is an amenable number.

137879057 is a deficient number, since it is larger than the sum of its proper divisors (3726499).

137879057 is an equidigital number, since it uses as much as digits as its factorization.

137879057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726498.

The product of its (nonzero) digits is 370440, while the sum is 47.

The square root of 137879057 is about 11742.1913201923. The cubic root of 137879057 is about 516.6139171028.

The spelling of 137879057 in words is "one hundred thirty-seven million, eight hundred seventy-nine thousand, fifty-seven".