149273188 has 12 divisors (see below), whose sum is σ = 261632700. Its totient is φ = 74520992.

The previous prime is 149273149. The next prime is 149273219. The reversal of 149273188 is 881372941.

149273188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15824484 + 133448704 = 3978^2 + 11552^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25963 + ... + 31186.

It is an arithmetic number, because the mean of its divisors is an integer number (21802725).

Almost surely, 2^149273188 is an apocalyptic number.

It is an amenable number.

149273188 is a deficient number, since it is larger than the sum of its proper divisors (112359512).

149273188 is a wasteful number, since it uses less digits than its factorization.

149273188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57806 (or 57804 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 149273188 is about 12217.7407076759. The cubic root of 149273188 is about 530.4697247853.

The spelling of 149273188 in words is "one hundred forty-nine million, two hundred seventy-three thousand, one hundred eighty-eight".