149887728 has 60 divisors (see below), whose sum is σ = 433021888. Its totient is φ = 48349440.

The previous prime is 149887709. The next prime is 149887733. The reversal of 149887728 is 827788941.

It is a happy number.

149887728 is a `hidden beast` number, since 1 + 498 + 87 + 72 + 8 = 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, 12325 + ... + 21252.

Almost surely, 2^149887728 is an apocalyptic number.

149887728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

149887728 is an abundant number, since it is smaller than the sum of its proper divisors (283134160).

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

149887728 is a wasteful number, since it uses less digits than its factorization.

149887728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33622 (or 33613 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 149887728 is about 12242.8643707263. The cubic root of 149887728 is about 531.1966883896.

The spelling of 149887728 in words is "one hundred forty-nine million, eight hundred eighty-seven thousand, seven hundred twenty-eight".