149152172 has 24 divisors (see below), whose sum is σ = 282835056. Its totient is φ = 68413248.

The previous prime is 149152153. The next prime is 149152181. The reversal of 149152172 is 271251941.

149152172 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 in 7 ways as a sum of consecutive naturals, for example, 323 + ... + 17274.

It is an arithmetic number, because the mean of its divisors is an integer number (11784794).

Almost surely, 2^149152172 is an apocalyptic number.

It is an amenable number.

149152172 is a deficient number, since it is larger than the sum of its proper divisors (133682884).

149152172 is a wasteful number, since it uses less digits than its factorization.

149152172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17777 (or 17775 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 149152172 is about 12212.7872330603. The cubic root of 149152172 is about 530.3263351593.

The spelling of 149152172 in words is "one hundred forty-nine million, one hundred fifty-two thousand, one hundred seventy-two".