136688804 has 24 divisors (see below), whose sum is σ = 280768320. Its totient is φ = 56997216.

The previous prime is 136688801. The next prime is 136688807. The reversal of 136688804 is 408886631.

It is an interprime number because it is at equal distance from previous prime (136688801) and next prime (136688807).

It is not an unprimeable number, because it can be changed into a prime (136688801) 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, 64934 + ... + 67005.

It is an arithmetic number, because the mean of its divisors is an integer number (11698680).

Almost surely, 2^136688804 is an apocalyptic number.

136688804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

136688804 is an abundant number, since it is smaller than the sum of its proper divisors (144079516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136688804 is a wasteful number, since it uses less digits than its factorization.

136688804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131987 (or 131985 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 136688804 is about 11691.3987187163. The cubic root of 136688804 is about 515.1230472314.

The spelling of 136688804 in words is "one hundred thirty-six million, six hundred eighty-eight thousand, eight hundred four".