149289664 has 14 divisors (see below), whose sum is σ = 296246804. Its totient is φ = 74644800.

The previous prime is 149289659. The next prime is 149289689. The reversal of 149289664 is 466982941.

149289664 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1166262 + ... + 1166389.

It is an arithmetic number, because the mean of its divisors is an integer number (21160486).

Almost surely, 2^149289664 is an apocalyptic number.

It is an amenable number.

149289664 is a deficient number, since it is larger than the sum of its proper divisors (146957140).

149289664 is an equidigital number, since it uses as much as digits as its factorization.

149289664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332663 (or 2332653 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The square root of 149289664 is about 12218.4149544857. The cubic root of 149289664 is about 530.4892408993.

The spelling of 149289664 in words is "one hundred forty-nine million, two hundred eighty-nine thousand, six hundred sixty-four".