149455728 has 60 divisors (see below), whose sum is σ = 429588328. Its totient is φ = 48470400.

The previous prime is 149455703. The next prime is 149455769. The reversal of 149455728 is 827554941.

149455728 is a `hidden beast` number, since 1 + 4 + 94 + 557 + 2 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8698 + ... + 19353.

Almost surely, 2^149455728 is an apocalyptic number.

149455728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

149455728 is an abundant number, since it is smaller than the sum of its proper divisors (280132600).

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

149455728 is a wasteful number, since it uses less digits than its factorization.

149455728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28102 (or 28093 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 149455728 is about 12225.2087098749. The cubic root of 149455728 is about 530.6858665253.

The spelling of 149455728 in words is "one hundred forty-nine million, four hundred fifty-five thousand, seven hundred twenty-eight".