149639524 has 12 divisors (see below), whose sum is σ = 262613484. Its totient is φ = 74607104.

The previous prime is 149639489. The next prime is 149639543. The reversal of 149639524 is 425936941.

It can be written as a sum of positive squares in 2 ways, for example, as 68062500 + 81577024 = 8250^2 + 9032^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51577 + ... + 54400.

It is an arithmetic number, because the mean of its divisors is an integer number (21884457).

Almost surely, 2^149639524 is an apocalyptic number.

It is an amenable number.

149639524 is a deficient number, since it is larger than the sum of its proper divisors (112973960).

149639524 is a wasteful number, since it uses less digits than its factorization.

149639524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106334 (or 106332 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 149639524 is about 12232.7234907031. The cubic root of 149639524 is about 530.9033177288.

The spelling of 149639524 in words is "one hundred forty-nine million, six hundred thirty-nine thousand, five hundred twenty-four".