149556728 has 16 divisors (see below), whose sum is σ = 280930680. Its totient is φ = 74641888.

The previous prime is 149556703. The next prime is 149556731. The reversal of 149556728 is 827655941.

It is a happy number.

149556728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12326 + ... + 21237.

Almost surely, 2^149556728 is an apocalyptic number.

It is an amenable number.

149556728 is a deficient number, since it is larger than the sum of its proper divisors (131373952).

149556728 is a wasteful number, since it uses less digits than its factorization.

149556728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34126 (or 34122 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 149556728 is about 12229.3388210483. The cubic root of 149556728 is about 530.8053828617.

The spelling of 149556728 in words is "one hundred forty-nine million, five hundred fifty-six thousand, seven hundred twenty-eight".