149025920 has 32 divisors (see below), whose sum is σ = 356266620. Its totient is φ = 59610112.

The previous prime is 149025887. The next prime is 149025937. The reversal of 149025920 is 29520941.

It can be written as a sum of positive squares in 2 ways, for example, as 138109504 + 10916416 = 11752^2 + 3304^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

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 3 ways as a sum of consecutive naturals, for example, 115787 + ... + 117066.

Almost surely, 2^149025920 is an apocalyptic number.

149025920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149025920 is an abundant number, since it is smaller than the sum of its proper divisors (207240700).

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

149025920 is an equidigital number, since it uses as much as digits as its factorization.

149025920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232872 (or 232860 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 149025920 is about 12207.6172941324. The cubic root of 149025920 is about 530.1766588029.

The spelling of 149025920 in words is "one hundred forty-nine million, twenty-five thousand, nine hundred twenty".