149908728 has 16 divisors (see below), whose sum is σ = 374771880. Its totient is φ = 49969568.

The previous prime is 149908711. The next prime is 149908753. The reversal of 149908728 is 827809941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3123075 + ... + 3123122.

Almost surely, 2^149908728 is an apocalyptic number.

It is an amenable number.

149908728 is an abundant number, since it is smaller than the sum of its proper divisors (224863152).

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

149908728 is a wasteful number, since it uses less digits than its factorization.

149908728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246206 (or 6246202 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 149908728 is about 12243.7219831226. The cubic root of 149908728 is about 531.2214949780.

The spelling of 149908728 in words is "one hundred forty-nine million, nine hundred eight thousand, seven hundred twenty-eight".