137262857 has 4 divisors (see below), whose sum is σ = 138678036. Its totient is φ = 135847680.

The previous prime is 137262841. The next prime is 137262869. The reversal of 137262857 is 758262731.

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 103958416 + 33304441 = 10196^2 + 5771^2 .

It is a cyclic number.

It is not a de Polignac number, because 137262857 - 2⁴ = 137262841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137262817) 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 3 ways as a sum of consecutive naturals, for example, 707444 + ... + 707637.

It is an arithmetic number, because the mean of its divisors is an integer number (34669509).

Almost surely, 2^137262857 is an apocalyptic number.

It is an amenable number.

137262857 is a deficient number, since it is larger than the sum of its proper divisors (1415179).

137262857 is an equidigital number, since it uses as much as digits as its factorization.

137262857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415178.

The product of its digits is 141120, while the sum is 41.

The square root of 137262857 is about 11715.9232243985. The cubic root of 137262857 is about 515.8431621271.

The spelling of 137262857 in words is "one hundred thirty-seven million, two hundred sixty-two thousand, eight hundred fifty-seven".