149813604 has 24 divisors (see below), whose sum is σ = 388405920. Its totient is φ = 49937832.

The previous prime is 149813561. The next prime is 149813647. The reversal of 149813604 is 406318941.

149813604 is a `hidden beast` number, since 1 + 49 + 8 + 1 + 3 + 604 = 666.

It is an interprime number because it is at equal distance from previous prime (149813561) and next prime (149813647).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 693474 + ... + 693689.

It is an arithmetic number, because the mean of its divisors is an integer number (16183580).

Almost surely, 2^149813604 is an apocalyptic number.

It is an amenable number.

149813604 is an abundant number, since it is smaller than the sum of its proper divisors (238592316).

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

149813604 is a wasteful number, since it uses less digits than its factorization.

149813604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387176 (or 1387168 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 149813604 is about 12239.8367636174. The cubic root of 149813604 is about 531.1091096927.

The spelling of 149813604 in words is "one hundred forty-nine million, eight hundred thirteen thousand, six hundred four".