136622377 has 2 divisors, whose sum is σ = 136622378. Its totient is φ = 136622376.

The previous prime is 136622359. The next prime is 136622401. The reversal of 136622377 is 773226631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72318016 + 64304361 = 8504^2 + 8019^2 .

It is an emirp because it is prime and its reverse (773226631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136622377 - 2²³ = 128233769 is a prime.

It is not a weakly prime, because it can be changed into another prime (136622327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68311188 + 68311189.

It is an arithmetic number, because the mean of its divisors is an integer number (68311189).

Almost surely, 2^136622377 is an apocalyptic number.

It is an amenable number.

136622377 is a deficient number, since it is larger than the sum of its proper divisors (1).

136622377 is an equidigital number, since it uses as much as digits as its factorization.

136622377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 37.

The square root of 136622377 is about 11688.5575243483. The cubic root of 136622377 is about 515.0395884985.

The spelling of 136622377 in words is "one hundred thirty-six million, six hundred twenty-two thousand, three hundred seventy-seven".