149577920 has 28 divisors (see below), whose sum is σ = 356183184. Its totient is φ = 59831040.

The previous prime is 149577913. The next prime is 149577929. The reversal of 149577920 is 29775941.

149577920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (149577929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233396 + ... + 234035.

It is an arithmetic number, because the mean of its divisors is an integer number (12720828).

Almost surely, 2^149577920 is an apocalyptic number.

149577920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149577920 is an abundant number, since it is smaller than the sum of its proper divisors (206605264).

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

149577920 is an equidigital number, since it uses as much as digits as its factorization.

149577920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467448 (or 467438 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 149577920 is about 12230.2052313115. The cubic root of 149577920 is about 530.8304531623.

The spelling of 149577920 in words is "one hundred forty-nine million, five hundred seventy-seven thousand, nine hundred twenty".