149813920 has 48 divisors (see below), whose sum is σ = 354842208. Its totient is φ = 59772160.

The previous prime is 149813903. The next prime is 149813933. The reversal of 149813920 is 29318941.

It is a self number, because there is not a number n which added to its sum of digits gives 149813920.

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, 77607 + ... + 79513.

It is an arithmetic number, because the mean of its divisors is an integer number (7392546).

Almost surely, 2^149813920 is an apocalyptic number.

149813920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149813920 is an abundant number, since it is smaller than the sum of its proper divisors (205028288).

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

149813920 is a wasteful number, since it uses less digits than its factorization.

149813920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 149813920 is about 12239.8496722795. The cubic root of 149813920 is about 531.1094831130.

The spelling of 149813920 in words is "one hundred forty-nine million, eight hundred thirteen thousand, nine hundred twenty".