136685340 has 96 divisors (see below), whose sum is σ = 463921920. Its totient is φ = 33134400.

The previous prime is 136685317. The next prime is 136685369. The reversal of 136685340 is 43586631.

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

It is a junction number, because it is equal to n+sod(n) for n = 136685295 and 136685304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5566 + ... + 17445.

It is an arithmetic number, because the mean of its divisors is an integer number (4832520).

Almost surely, 2^136685340 is an apocalyptic number.

136685340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136685340 is an abundant number, since it is smaller than the sum of its proper divisors (327236580).

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

136685340 is a wasteful number, since it uses less digits than its factorization.

136685340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23040 (or 23032 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 136685340 is about 11691.2505746819. The cubic root of 136685340 is about 515.1186957380.

The spelling of 136685340 in words is "one hundred thirty-six million, six hundred eighty-five thousand, three hundred forty".