136977507 has 8 divisors (see below), whose sum is σ = 202929680. Its totient is φ = 91318320.

The previous prime is 136977487. The next prime is 136977541. The reversal of 136977507 is 705779631.

136977507 is a `hidden beast` number, since 13 + 69 + 77 + 507 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-136977507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136977557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2536594 + ... + 2536647.

It is an arithmetic number, because the mean of its divisors is an integer number (25366210).

Almost surely, 2^136977507 is an apocalyptic number.

136977507 is a deficient number, since it is larger than the sum of its proper divisors (65952173).

136977507 is an equidigital number, since it uses as much as digits as its factorization.

136977507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073250 (or 5073244 counting only the distinct ones).

The product of its (nonzero) digits is 277830, while the sum is 45.

The square root of 136977507 is about 11703.7390179378. The cubic root of 136977507 is about 515.4854592320.

The spelling of 136977507 in words is "one hundred thirty-six million, nine hundred seventy-seven thousand, five hundred seven".