149612931 has 24 divisors (see below), whose sum is σ = 236557776. Its totient is φ = 90555840.

The previous prime is 149612923. The next prime is 149612933. The reversal of 149612931 is 139216941.

It is a happy number.

149612931 is a `hidden beast` number, since 1 + 4 + 9 + 612 + 9 + 31 = 666.

149612931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149612931 - 2³ = 149612923 is a prime.

It is a super-2 number, since 2×149612931² = 44768058244821522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149612933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3345 + ... + 17618.

It is an arithmetic number, because the mean of its divisors is an integer number (9856574).

Almost surely, 2^149612931 is an apocalyptic number.

149612931 is a deficient number, since it is larger than the sum of its proper divisors (86944845).

149612931 is a wasteful number, since it uses less digits than its factorization.

149612931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21043 (or 21040 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 149612931 is about 12231.6364808639. The cubic root of 149612931 is about 530.8718662603.

The spelling of 149612931 in words is "one hundred forty-nine million, six hundred twelve thousand, nine hundred thirty-one".