149944664 has 32 divisors (see below), whose sum is σ = 289889280. Its totient is φ = 72671904.

The previous prime is 149944631. The next prime is 149944681. The reversal of 149944664 is 466449941.

It is a Harshad number since it is a multiple of its sum of digits (47).

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 7 ways as a sum of consecutive naturals, for example, 38369 + ... + 42095.

It is an arithmetic number, because the mean of its divisors is an integer number (9059040).

Almost surely, 2^149944664 is an apocalyptic number.

It is an amenable number.

149944664 is a deficient number, since it is larger than the sum of its proper divisors (139944616).

149944664 is a wasteful number, since it uses less digits than its factorization.

149944664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887 (or 3883 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 149944664 is about 12245.1894227897. The cubic root of 149944664 is about 531.2639395835.

The spelling of 149944664 in words is "one hundred forty-nine million, nine hundred forty-four thousand, six hundred sixty-four".