149309938 has 8 divisors (see below), whose sum is σ = 224114688. Its totient is φ = 74605044.

The previous prime is 149309917. The next prime is 149309939. The reversal of 149309938 is 839903941.

149309938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (149309939) 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, 21106 + ... + 27277.

It is an arithmetic number, because the mean of its divisors is an integer number (28014336).

Almost surely, 2^149309938 is an apocalyptic number.

149309938 is a deficient number, since it is larger than the sum of its proper divisors (74804750).

149309938 is a wasteful number, since it uses less digits than its factorization.

149309938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49928.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 149309938 is about 12219.2445756683. The cubic root of 149309938 is about 530.5132538411.

The spelling of 149309938 in words is "one hundred forty-nine million, three hundred nine thousand, nine hundred thirty-eight".