149779968 has 120 divisors (see below), whose sum is σ = 432827208. Its totient is φ = 46006272.

The previous prime is 149779963. The next prime is 149780009. The reversal of 149779968 is 869977941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149779963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259296 + ... + 259872.

Almost surely, 2^149779968 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 149779968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216413604).

149779968 is an abundant number, since it is smaller than the sum of its proper divisors (283047240).

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

149779968 is an equidigital number, since it uses as much as digits as its factorization.

149779968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 595 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 60.

The square root of 149779968 is about 12238.4626485519. The cubic root of 149779968 is about 531.0693586895.

The spelling of 149779968 in words is "one hundred forty-nine million, seven hundred seventy-nine thousand, nine hundred sixty-eight".