136766520 has 96 divisors (see below), whose sum is σ = 484913520. Its totient is φ = 33154560.

The previous prime is 136766507. The next prime is 136766527. The reversal of 136766520 is 25667631.

136766520 is a `hidden beast` number, since 13 + 67 + 66 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136766527) 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 23 ways as a sum of consecutive naturals, for example, 13309 + ... + 21228.

Almost surely, 2^136766520 is an apocalyptic number.

136766520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136766520 is an abundant number, since it is smaller than the sum of its proper divisors (348147000).

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

136766520 is a wasteful number, since it uses less digits than its factorization.

136766520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34565 (or 34558 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 136766520 is about 11694.7218863896. The cubic root of 136766520 is about 515.2206551233.

The spelling of 136766520 in words is "one hundred thirty-six million, seven hundred sixty-six thousand, five hundred twenty".