149879864 has 32 divisors (see below), whose sum is σ = 286156800. Its totient is φ = 73580640.

The previous prime is 149879857. The next prime is 149879869. The reversal of 149879864 is 468978941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149879869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208097 + ... + 208815.

It is an arithmetic number, because the mean of its divisors is an integer number (8942400).

Almost surely, 2^149879864 is an apocalyptic number.

It is an amenable number.

149879864 is a deficient number, since it is larger than the sum of its proper divisors (136276936).

149879864 is a wasteful number, since it uses less digits than its factorization.

149879864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1159 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 56.

The square root of 149879864 is about 12242.5431998421. The cubic root of 149879864 is about 531.1873983166.

The spelling of 149879864 in words is "one hundred forty-nine million, eight hundred seventy-nine thousand, eight hundred sixty-four".