149989256 has 16 divisors (see below), whose sum is σ = 293457600. Its totient is φ = 71733904.

The previous prime is 149989243. The next prime is 149989277. The reversal of 149989256 is 652989941.

It is a junction number, because it is equal to n+sod(n) for n = 149989198 and 149989207.

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, 407396 + ... + 407763.

It is an arithmetic number, because the mean of its divisors is an integer number (18341100).

Almost surely, 2^149989256 is an apocalyptic number.

It is an amenable number.

149989256 is a deficient number, since it is larger than the sum of its proper divisors (143468344).

149989256 is a wasteful number, since it uses less digits than its factorization.

149989256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815188 (or 815184 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 53.

The square root of 149989256 is about 12247.0100840981. The cubic root of 149989256 is about 531.3165985066.

The spelling of 149989256 in words is "one hundred forty-nine million, nine hundred eighty-nine thousand, two hundred fifty-six".