149988057 has 16 divisors (see below), whose sum is σ = 204103680. Its totient is φ = 97952400.

The previous prime is 149988053. The next prime is 149988073. The reversal of 149988057 is 750889941.

It is not a de Polignac number, because 149988057 - 2² = 149988053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149988053) 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 15 ways as a sum of consecutive naturals, for example, 28632 + ... + 33462.

It is an arithmetic number, because the mean of its divisors is an integer number (12756480).

Almost surely, 2^149988057 is an apocalyptic number.

It is an amenable number.

149988057 is a deficient number, since it is larger than the sum of its proper divisors (54115623).

149988057 is a wasteful number, since it uses less digits than its factorization.

149988057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 149988057 is about 12246.9611332771. The cubic root of 149988057 is about 531.3151827378.

The spelling of 149988057 in words is "one hundred forty-nine million, nine hundred eighty-eight thousand, fifty-seven".