151012172 has 24 divisors (see below), whose sum is σ = 269166240. Its totient is φ = 74117120.

The previous prime is 151012157. The next prime is 151012237. The reversal of 151012172 is 271210151.

It is a happy number.

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, 71954 + ... + 74022.

It is an arithmetic number, because the mean of its divisors is an integer number (11215260).

Almost surely, 2^151012172 is an apocalyptic number.

It is an amenable number.

151012172 is a deficient number, since it is larger than the sum of its proper divisors (118154068).

151012172 is a wasteful number, since it uses less digits than its factorization.

151012172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 151012172 is about 12288.7009891200. The cubic root of 151012172 is about 532.5217101216.

The spelling of 151012172 in words is "one hundred fifty-one million, twelve thousand, one hundred seventy-two".