136371980 has 24 divisors (see below), whose sum is σ = 286655712. Its totient is φ = 54496512.

The previous prime is 136371979. The next prime is 136372003. The reversal of 136371980 is 89173631.

It is an unprimeable number.

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, 23444 + ... + 28676.

It is an arithmetic number, because the mean of its divisors is an integer number (11943988).

Almost surely, 2^136371980 is an apocalyptic number.

136371980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136371980 is an abundant number, since it is smaller than the sum of its proper divisors (150283732).

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

136371980 is a wasteful number, since it uses less digits than its factorization.

136371980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6545 (or 6543 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 136371980 is about 11677.8414101237. The cubic root of 136371980 is about 514.7247468691.

The spelling of 136371980 in words is "one hundred thirty-six million, three hundred seventy-one thousand, nine hundred eighty".