149215520 has 24 divisors (see below), whose sum is σ = 352522044. Its totient is φ = 59686144.

The previous prime is 149215519. The next prime is 149215529. The reversal of 149215520 is 25512941.

It can be written as a sum of positive squares in 2 ways, for example, as 137077264 + 12138256 = 11708^2 + 3484^2 .

It is not an unprimeable number, because it can be changed into a prime (149215529) by changing a digit.

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, 466139 + ... + 466458.

Almost surely, 2^149215520 is an apocalyptic number.

149215520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149215520 is an abundant number, since it is smaller than the sum of its proper divisors (203306524).

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

149215520 is an equidigital number, since it uses as much as digits as its factorization.

149215520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932612 (or 932604 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 149215520 is about 12215.3804689007. The cubic root of 149215520 is about 530.4014047056.

The spelling of 149215520 in words is "one hundred forty-nine million, two hundred fifteen thousand, five hundred twenty".