149039856 has 120 divisors (see below), whose sum is σ = 479731200. Its totient is φ = 42311808.

The previous prime is 149039843. The next prime is 149039861. The reversal of 149039856 is 658930941.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200221 + ... + 200963.

It is an arithmetic number, because the mean of its divisors is an integer number (3997760).

Almost surely, 2^149039856 is an apocalyptic number.

149039856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149039856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239865600).

149039856 is an abundant number, since it is smaller than the sum of its proper divisors (330691344).

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

149039856 is a wasteful number, since it uses less digits than its factorization.

149039856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 149039856 is about 12208.1880719458. The cubic root of 149039856 is about 530.1931845895.

The spelling of 149039856 in words is "one hundred forty-nine million, thirty-nine thousand, eight hundred fifty-six".