136530680 has 64 divisors (see below), whose sum is σ = 360914400. Its totient is φ = 45826560.

The previous prime is 136530679. The next prime is 136530707. The reversal of 136530680 is 86035631.

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, 6215 + ... + 17654.

Almost surely, 2^136530680 is an apocalyptic number.

136530680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136530680 is an abundant number, since it is smaller than the sum of its proper divisors (224383720).

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

136530680 is a wasteful number, since it uses less digits than its factorization.

136530680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23904 (or 23900 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 136530680 is about 11684.6343545701. The cubic root of 136530680 is about 514.9243361363.

The spelling of 136530680 in words is "one hundred thirty-six million, five hundred thirty thousand, six hundred eighty".