136813580 has 24 divisors (see below), whose sum is σ = 287800128. Its totient is φ = 54631808.

The previous prime is 136813577. The next prime is 136813583. The reversal of 136813580 is 85318631.

It is an interprime number because it is at equal distance from previous prime (136813577) and next prime (136813583).

It is a self number, because there is not a number n which added to its sum of digits gives 136813580.

It is not an unprimeable number, because it can be changed into a prime (136813583) 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, 6797 + ... + 17883.

It is an arithmetic number, because the mean of its divisors is an integer number (11991672).

Almost surely, 2^136813580 is an apocalyptic number.

136813580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136813580 is an abundant number, since it is smaller than the sum of its proper divisors (150986548).

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

136813580 is a wasteful number, since it uses less digits than its factorization.

136813580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11713 (or 11711 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 136813580 is about 11696.7337321151. The cubic root of 136813580 is about 515.2797424487.

The spelling of 136813580 in words is "one hundred thirty-six million, eight hundred thirteen thousand, five hundred eighty".