149579172 has 72 divisors (see below), whose sum is σ = 399744800. Its totient is φ = 47029248.

The previous prime is 149579159. The next prime is 149579201. The reversal of 149579172 is 271975941.

149579172 is a `hidden beast` number, since 1 + 4 + 9 + 579 + 1 + 72 = 666.

Its product of digits (158760) is a multiple of the sum of its prime divisors (980).

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 23 ways as a sum of consecutive naturals, for example, 258948 + ... + 259524.

Almost surely, 2^149579172 is an apocalyptic number.

149579172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149579172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199872400).

149579172 is an abundant number, since it is smaller than the sum of its proper divisors (250165628).

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

149579172 is a wasteful number, since it uses less digits than its factorization.

149579172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 980 counting only the distinct ones).

The product of its digits is 158760, while the sum is 45.

The square root of 149579172 is about 12230.2564159547. The cubic root of 149579172 is about 530.8319342139.

The spelling of 149579172 in words is "one hundred forty-nine million, five hundred seventy-nine thousand, one hundred seventy-two".