136870577 has 2 divisors, whose sum is σ = 136870578. Its totient is φ = 136870576.

The previous prime is 136870561. The next prime is 136870579. The reversal of 136870577 is 775078631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127328656 + 9541921 = 11284^2 + 3089^2 .

It is a cyclic number.

It is not a de Polignac number, because 136870577 - 2⁴ = 136870561 is a prime.

Together with 136870579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136870579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68435288 + 68435289.

It is an arithmetic number, because the mean of its divisors is an integer number (68435289).

Almost surely, 2^136870577 is an apocalyptic number.

It is an amenable number.

136870577 is a deficient number, since it is larger than the sum of its proper divisors (1).

136870577 is an equidigital number, since it uses as much as digits as its factorization.

136870577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 44.

The square root of 136870577 is about 11699.1699278197. The cubic root of 136870577 is about 515.3512882751.

The spelling of 136870577 in words is "one hundred thirty-six million, eight hundred seventy thousand, five hundred seventy-seven".