136642885 has 16 divisors (see below), whose sum is σ = 176624640. Its totient is φ = 101185920.

The previous prime is 136642861. The next prime is 136642897. The reversal of 136642885 is 588246631.

It is not a de Polignac number, because 136642885 - 2⁵ = 136642853 is a prime.

It is a super-2 number, since 2×136642885² = 37342556042246450, which contains 22 as substring.

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, 15600 + ... + 22729.

It is an arithmetic number, because the mean of its divisors is an integer number (11039040).

Almost surely, 2^136642885 is an apocalyptic number.

It is an amenable number.

136642885 is a deficient number, since it is larger than the sum of its proper divisors (39981755).

136642885 is a wasteful number, since it uses less digits than its factorization.

136642885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38388.

The product of its digits is 276480, while the sum is 43.

The square root of 136642885 is about 11689.4347596451. The cubic root of 136642885 is about 515.0653575896.

The spelling of 136642885 in words is "one hundred thirty-six million, six hundred forty-two thousand, eight hundred eighty-five".