149978112 has 44 divisors (see below), whose sum is σ = 399754536. Its totient is φ = 49991680.

The previous prime is 149978107. The next prime is 149978137. The reversal of 149978112 is 211879941.

It is a congruent number.

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, 21339 + ... + 27482.

Almost surely, 2^149978112 is an apocalyptic number.

149978112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149978112 is an abundant number, since it is smaller than the sum of its proper divisors (249776424).

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

149978112 is an equidigital number, since it uses as much as digits as its factorization.

149978112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48844 (or 48826 counting only the distinct ones).

The product of its digits is 36288, while the sum is 42.

The square root of 149978112 is about 12246.5551074578. Note that the first 3 decimals coincide. The cubic root of 149978112 is about 531.3034394778.

The spelling of 149978112 in words is "one hundred forty-nine million, nine hundred seventy-eight thousand, one hundred twelve".