149839907 has 16 divisors (see below), whose sum is σ = 175929600. Its totient is φ = 124945632.

The previous prime is 149839849. The next prime is 149839927. The reversal of 149839907 is 709938941.

It is not a de Polignac number, because 149839907 - 2¹² = 149835811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149839927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87344 + ... + 89042.

It is an arithmetic number, because the mean of its divisors is an integer number (10995600).

Almost surely, 2^149839907 is an apocalyptic number.

149839907 is a deficient number, since it is larger than the sum of its proper divisors (26089693).

149839907 is a wasteful number, since it uses less digits than its factorization.

149839907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 149839907 is about 12240.9111997433. The cubic root of 149839907 is about 531.1401904158.

The spelling of 149839907 in words is "one hundred forty-nine million, eight hundred thirty-nine thousand, nine hundred seven".