149646972 has 48 divisors (see below), whose sum is σ = 354816000. Its totient is φ = 49083840.

The previous prime is 149646967. The next prime is 149646997. The reversal of 149646972 is 279646941.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249529 + ... + 250127.

It is an arithmetic number, because the mean of its divisors is an integer number (7392000).

Almost surely, 2^149646972 is an apocalyptic number.

149646972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149646972 is an abundant number, since it is smaller than the sum of its proper divisors (205169028).

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

149646972 is a wasteful number, since it uses less digits than its factorization.

149646972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 904 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 149646972 is about 12233.0279162601. The cubic root of 149646972 is about 530.9121257901.

The spelling of 149646972 in words is "one hundred forty-nine million, six hundred forty-six thousand, nine hundred seventy-two".