149591764 has 24 divisors (see below), whose sum is σ = 304091648. Its totient is φ = 63059040.

The previous prime is 149591749. The next prime is 149591843. The reversal of 149591764 is 467195941.

149591764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42084 + ... + 45499.

Almost surely, 2^149591764 is an apocalyptic number.

149591764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

149591764 is an abundant number, since it is smaller than the sum of its proper divisors (154499884).

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

149591764 is a wasteful number, since it uses less digits than its factorization.

149591764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87655 (or 87653 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 149591764 is about 12230.7711940008. The cubic root of 149591764 is about 530.8468294432.

The spelling of 149591764 in words is "one hundred forty-nine million, five hundred ninety-one thousand, seven hundred sixty-four".