136381872 has 40 divisors (see below), whose sum is σ = 384350400. Its totient is φ = 41327680.

The previous prime is 136381849. The next prime is 136381891. The reversal of 136381872 is 278183631.

It is a self number, because there is not a number n which added to its sum of digits gives 136381872.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128622 + ... + 129677.

It is an arithmetic number, because the mean of its divisors is an integer number (9608760).

Almost surely, 2^136381872 is an apocalyptic number.

136381872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136381872 is an abundant number, since it is smaller than the sum of its proper divisors (247968528).

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

136381872 is a wasteful number, since it uses less digits than its factorization.

136381872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258321 (or 258315 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 136381872 is about 11678.2649396218. The cubic root of 136381872 is about 514.7371920798.

The spelling of 136381872 in words is "one hundred thirty-six million, three hundred eighty-one thousand, eight hundred seventy-two".