136664605 has 16 divisors (see below), whose sum is σ = 204465024. Its totient is φ = 85193280.

The previous prime is 136664543. The next prime is 136664629. The reversal of 136664605 is 506466631.

It is not a de Polignac number, because 136664605 - 2¹⁷ = 136533533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177102 + ... + 177871.

It is an arithmetic number, because the mean of its divisors is an integer number (12779064).

Almost surely, 2^136664605 is an apocalyptic number.

It is an amenable number.

136664605 is a deficient number, since it is larger than the sum of its proper divisors (67800419).

136664605 is a wasteful number, since it uses less digits than its factorization.

136664605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354996.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 136664605 is about 11690.3637667953. The cubic root of 136664605 is about 515.0926467940.

The spelling of 136664605 in words is "one hundred thirty-six million, six hundred sixty-four thousand, six hundred five".