137127857 has 2 divisors, whose sum is σ = 137127858. Its totient is φ = 137127856.

The previous prime is 137127853. The next prime is 137127901. The reversal of 137127857 is 758721731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124567921 + 12559936 = 11161^2 + 3544^2 .

It is a cyclic number.

It is not a de Polignac number, because 137127857 - 2² = 137127853 is a prime.

It is not a weakly prime, because it can be changed into another prime (137127853) 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 as a sum of consecutive naturals, namely, 68563928 + 68563929.

It is an arithmetic number, because the mean of its divisors is an integer number (68563929).

Almost surely, 2^137127857 is an apocalyptic number.

It is an amenable number.

137127857 is a deficient number, since it is larger than the sum of its proper divisors (1).

137127857 is an equidigital number, since it uses as much as digits as its factorization.

137127857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82320, while the sum is 41.

The square root of 137127857 is about 11710.1604173470. The cubic root of 137127857 is about 515.6739935913.

The spelling of 137127857 in words is "one hundred thirty-seven million, one hundred twenty-seven thousand, eight hundred fifty-seven".