136377677 has 2 divisors, whose sum is σ = 136377678. Its totient is φ = 136377676.

The previous prime is 136377673. The next prime is 136377697. The reversal of 136377677 is 776773631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132273001 + 4104676 = 11501^2 + 2026^2 .

It is an emirp because it is prime and its reverse (776773631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136377677 - 2² = 136377673 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136377673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68188838 + 68188839.

It is an arithmetic number, because the mean of its divisors is an integer number (68188839).

Almost surely, 2^136377677 is an apocalyptic number.

It is an amenable number.

136377677 is a deficient number, since it is larger than the sum of its proper divisors (1).

136377677 is an equidigital number, since it uses as much as digits as its factorization.

136377677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777924, while the sum is 47.

The square root of 136377677 is about 11678.0853310806. The cubic root of 136377677 is about 514.7319143875.

The spelling of 136377677 in words is "one hundred thirty-six million, three hundred seventy-seven thousand, six hundred seventy-seven".