149655786 has 64 divisors (see below), whose sum is σ = 356106240. Its totient is φ = 41028480.

The previous prime is 149655769. The next prime is 149655791. The reversal of 149655786 is 687556941.

149655786 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177955 + ... + 178793.

It is an arithmetic number, because the mean of its divisors is an integer number (5564160).

Almost surely, 2^149655786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149655786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178053120).

149655786 is an abundant number, since it is smaller than the sum of its proper divisors (206450454).

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

149655786 is a wasteful number, since it uses less digits than its factorization.

149655786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019.

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

The square root of 149655786 is about 12233.3881651814. The cubic root of 149655786 is about 530.9225489158.

The spelling of 149655786 in words is "one hundred forty-nine million, six hundred fifty-five thousand, seven hundred eighty-six".