149917912 has 16 divisors (see below), whose sum is σ = 283311360. Its totient is φ = 74368224.

The previous prime is 149917903. The next prime is 149917913. The reversal of 149917912 is 219719941.

149917912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149917913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72763 + ... + 74794.

It is an arithmetic number, because the mean of its divisors is an integer number (17706960).

Almost surely, 2^149917912 is an apocalyptic number.

It is an amenable number.

149917912 is a deficient number, since it is larger than the sum of its proper divisors (133393448).

149917912 is a wasteful number, since it uses less digits than its factorization.

149917912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147690 (or 147686 counting only the distinct ones).

The product of its digits is 40824, while the sum is 43.

The square root of 149917912 is about 12244.0970267309. The cubic root of 149917912 is about 531.2323429979.

The spelling of 149917912 in words is "one hundred forty-nine million, nine hundred seventeen thousand, nine hundred twelve".