149271924 has 24 divisors (see below), whose sum is σ = 348953248. Its totient is φ = 49664160.

The previous prime is 149271907. The next prime is 149271929. The reversal of 149271924 is 429172941.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149271929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4807 + ... + 17934.

Almost surely, 2^149271924 is an apocalyptic number.

It is an amenable number.

149271924 is an abundant number, since it is smaller than the sum of its proper divisors (199681324).

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

149271924 is a wasteful number, since it uses less digits than its factorization.

149271924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23295 (or 23293 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 149271924 is about 12217.6889795084. The cubic root of 149271924 is about 530.4682274956.

The spelling of 149271924 in words is "one hundred forty-nine million, two hundred seventy-one thousand, nine hundred twenty-four".