149199724 has 6 divisors (see below), whose sum is σ = 261099524. Its totient is φ = 74599860.

The previous prime is 149199709. The next prime is 149199733. The reversal of 149199724 is 427991941.

149199724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18649962 + ... + 18649969.

Almost surely, 2^149199724 is an apocalyptic number.

It is an amenable number.

149199724 is a deficient number, since it is larger than the sum of its proper divisors (111899800).

149199724 is a wasteful number, since it uses less digits than its factorization.

149199724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37299935 (or 37299933 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The square root of 149199724 is about 12214.7338898561. The cubic root of 149199724 is about 530.3826878942.

The spelling of 149199724 in words is "one hundred forty-nine million, one hundred ninety-nine thousand, seven hundred twenty-four".