149518188 has 18 divisors (see below), whose sum is σ = 377948844. Its totient is φ = 49839384.

The previous prime is 149518157. The next prime is 149518211. The reversal of 149518188 is 881815941.

149518188 is a `hidden beast` number, since 1 + 495 + 1 + 81 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2076606 + ... + 2076677.

It is an arithmetic number, because the mean of its divisors is an integer number (20997158).

Almost surely, 2^149518188 is an apocalyptic number.

149518188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

149518188 is an abundant number, since it is smaller than the sum of its proper divisors (228430656).

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

149518188 is a wasteful number, since it uses less digits than its factorization.

149518188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153293 (or 4153288 counting only the distinct ones).

The product of its digits is 92160, while the sum is 45.

The square root of 149518188 is about 12227.7630006473. The cubic root of 149518188 is about 530.7597836717.

It can be divided in two parts, 1495 and 18188, that added together give a 9-th power (19683 = 3⁹).

The spelling of 149518188 in words is "one hundred forty-nine million, five hundred eighteen thousand, one hundred eighty-eight".