149857656 has 64 divisors (see below), whose sum is σ = 405340320. Its totient is φ = 45895680.

The previous prime is 149857633. The next prime is 149857657. The reversal of 149857656 is 656758941.

149857656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 149857599 and 149857608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149857657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74196 + ... + 76188.

Almost surely, 2^149857656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149857656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202670160).

149857656 is an abundant number, since it is smaller than the sum of its proper divisors (255482664).

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

149857656 is a wasteful number, since it uses less digits than its factorization.

149857656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 2252 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The square root of 149857656 is about 12241.6361651537. The cubic root of 149857656 is about 531.1611613200.

The spelling of 149857656 in words is "one hundred forty-nine million, eight hundred fifty-seven thousand, six hundred fifty-six".