16139907 has 12 divisors (see below), whose sum is σ = 26643760. Its totient is φ = 9222768.

The previous prime is 16139899. The next prime is 16139923. The reversal of 16139907 is 70993161.

16139907 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16139907 - 2³ = 16139899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16139107) 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, 128032 + ... + 128157.

Almost surely, 2^16139907 is an apocalyptic number.

16139907 is a deficient number, since it is larger than the sum of its proper divisors (10503853).

16139907 is a wasteful number, since it uses less digits than its factorization.

16139907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256202 (or 256199 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 16139907 is about 4017.4503108315. The cubic root of 16139907 is about 252.7165452760.

The spelling of 16139907 in words is "sixteen million, one hundred thirty-nine thousand, nine hundred seven".