149999544 has 48 divisors (see below), whose sum is σ = 410290920. Its totient is φ = 49502400.

The previous prime is 149999503. The next prime is 149999561. The reversal of 149999544 is 445999941.

149999544 is a `hidden beast` number, since 1 + 4 + 9 + 9 + 99 + 544 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3042 + ... + 17585.

Almost surely, 2^149999544 is an apocalyptic number.

It is an amenable number.

149999544 is an abundant number, since it is smaller than the sum of its proper divisors (260291376).

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

149999544 is a wasteful number, since it uses less digits than its factorization.

149999544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20740 (or 20733 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 149999544 is about 12247.4300977797. The cubic root of 149999544 is about 531.3287461771.

The spelling of 149999544 in words is "one hundred forty-nine million, nine hundred ninety-nine thousand, five hundred forty-four".