149557188 has 24 divisors (see below), whose sum is σ = 380691360. Its totient is φ = 45320320.

The previous prime is 149557181. The next prime is 149557207. The reversal of 149557188 is 881755941.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (149557181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566373 + ... + 566636.

It is an arithmetic number, because the mean of its divisors is an integer number (15862140).

Almost surely, 2^149557188 is an apocalyptic number.

It is an amenable number.

149557188 is an abundant number, since it is smaller than the sum of its proper divisors (231134172).

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

149557188 is a wasteful number, since it uses less digits than its factorization.

149557188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133027 (or 1133025 counting only the distinct ones).

The product of its digits is 403200, while the sum is 48.

The square root of 149557188 is about 12229.3576282649. The cubic root of 149557188 is about 530.8059270704.

The spelling of 149557188 in words is "one hundred forty-nine million, five hundred fifty-seven thousand, one hundred eighty-eight".