149267172 has 12 divisors (see below), whose sum is σ = 348290096. Its totient is φ = 49755720.

The previous prime is 149267161. The next prime is 149267219. The reversal of 149267172 is 271762941.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 149267172.

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, 6219454 + ... + 6219477.

Almost surely, 2^149267172 is an apocalyptic number.

149267172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149267172 is an abundant number, since it is smaller than the sum of its proper divisors (199022924).

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

149267172 is a wasteful number, since it uses less digits than its factorization.

149267172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12438938 (or 12438936 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 149267172 is about 12217.4945058306. The cubic root of 149267172 is about 530.4625983688.

The spelling of 149267172 in words is "one hundred forty-nine million, two hundred sixty-seven thousand, one hundred seventy-two".