16139422 has 32 divisors (see below), whose sum is σ = 27542592. Its totient is φ = 7037184.

The previous prime is 16139419. The next prime is 16139423. The reversal of 16139422 is 22493161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16139423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81828 + ... + 82024.

It is an arithmetic number, because the mean of its divisors is an integer number (860706).

Almost surely, 2^16139422 is an apocalyptic number.

16139422 is a deficient number, since it is larger than the sum of its proper divisors (11403170).

16139422 is a wasteful number, since it uses less digits than its factorization.

16139422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372.

The product of its digits is 2592, while the sum is 28.

The square root of 16139422 is about 4017.3899487105. The cubic root of 16139422 is about 252.7140138952.

It can be divided in two parts, 16139 and 422, that added together give a palindrome (16561).

The spelling of 16139422 in words is "sixteen million, one hundred thirty-nine thousand, four hundred twenty-two".