149373972 has 72 divisors (see below), whose sum is σ = 433611360. Its totient is φ = 42880320.

The previous prime is 149373907. The next prime is 149373997. The reversal of 149373972 is 279373941.

149373972 is a `hidden beast` number, since 1 + 493 + 73 + 97 + 2 = 666.

It is a super-2 number, since 2×149373972² = 44625167022113568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2403 + ... + 17450.

It is an arithmetic number, because the mean of its divisors is an integer number (6022380).

Almost surely, 2^149373972 is an apocalyptic number.

149373972 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 149373972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216805680).

149373972 is an abundant number, since it is smaller than the sum of its proper divisors (284237388).

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

149373972 is a wasteful number, since it uses less digits than its factorization.

149373972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19893 (or 19888 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 149373972 is about 12221.8645058763. The cubic root of 149373972 is about 530.5890827533.

The spelling of 149373972 in words is "one hundred forty-nine million, three hundred seventy-three thousand, nine hundred seventy-two".