137539057 has 4 divisors (see below), whose sum is σ = 143519040. Its totient is φ = 131559076.

The previous prime is 137539021. The next prime is 137539067. The reversal of 137539057 is 750935731.

137539057 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137539057 - 2¹¹ = 137537009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137539067) 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, 2989957 + ... + 2990002.

It is an arithmetic number, because the mean of its divisors is an integer number (35879760).

Almost surely, 2^137539057 is an apocalyptic number.

It is an amenable number.

137539057 is a deficient number, since it is larger than the sum of its proper divisors (5979983).

137539057 is an equidigital number, since it uses as much as digits as its factorization.

137539057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5979982.

The product of its (nonzero) digits is 99225, while the sum is 40.

The square root of 137539057 is about 11727.7046773868. The cubic root of 137539057 is about 516.1889231193.

The spelling of 137539057 in words is "one hundred thirty-seven million, five hundred thirty-nine thousand, fifty-seven".