149193872 has 10 divisors (see below), whose sum is σ = 289063158. Its totient is φ = 74596928.

The previous prime is 149193841. The next prime is 149193881. The reversal of 149193872 is 278391941.

It can be written as a sum of positive squares in only one way, i.e., 126877696 + 22316176 = 11264^2 + 4724^2 .

It is a super-2 number, since 2×149193872² = 44517622884704768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4662293 + ... + 4662324.

Almost surely, 2^149193872 is an apocalyptic number.

It is an amenable number.

149193872 is a deficient number, since it is larger than the sum of its proper divisors (139869286).

149193872 is an equidigital number, since it uses as much as digits as its factorization.

149193872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324625 (or 9324619 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 149193872 is about 12214.4943407412. The cubic root of 149193872 is about 530.3757534755.

The spelling of 149193872 in words is "one hundred forty-nine million, one hundred ninety-three thousand, eight hundred seventy-two".