136808140 has 48 divisors (see below), whose sum is σ = 342623232. Its totient is φ = 44865216.

The previous prime is 136808137. The next prime is 136808201. The reversal of 136808140 is 41808631.

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, 18024 + ... + 24463.

It is an arithmetic number, because the mean of its divisors is an integer number (7137984).

Almost surely, 2^136808140 is an apocalyptic number.

136808140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136808140 is an abundant number, since it is smaller than the sum of its proper divisors (205815092).

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

136808140 is a wasteful number, since it uses less digits than its factorization.

136808140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42526 (or 42524 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 136808140 is about 11696.5011862522. The cubic root of 136808140 is about 515.2729128173.

The spelling of 136808140 in words is "one hundred thirty-six million, eight hundred eight thousand, one hundred forty".