149745972 has 48 divisors (see below), whose sum is σ = 357671552. Its totient is φ = 48746880.

The previous prime is 149745949. The next prime is 149745983. The reversal of 149745972 is 279547941.

149745972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×149745972² = 44847712260449568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114273 + ... + 115575.

Almost surely, 2^149745972 is an apocalyptic number.

149745972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149745972 is an abundant number, since it is smaller than the sum of its proper divisors (207925580).

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

149745972 is a wasteful number, since it uses less digits than its factorization.

149745972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1526 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The square root of 149745972 is about 12237.0736697954. The cubic root of 149745972 is about 531.0291761910.

The spelling of 149745972 in words is "one hundred forty-nine million, seven hundred forty-five thousand, nine hundred seventy-two".