22166139 has 8 divisors (see below), whose sum is σ = 29603392. Its totient is φ = 14753160.

The previous prime is 22166101. The next prime is 22166143. The reversal of 22166139 is 93166122.

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

It is not a de Polignac number, because 22166139 - 2⁸ = 22165883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22166159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3817 + ... + 7674.

It is an arithmetic number, because the mean of its divisors is an integer number (3700424).

Almost surely, 2^22166139 is an apocalyptic number.

22166139 is a deficient number, since it is larger than the sum of its proper divisors (7437253).

22166139 is a wasteful number, since it uses less digits than its factorization.

22166139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12137.

The product of its digits is 3888, while the sum is 30.

The square root of 22166139 is about 4708.0929260158. The cubic root of 22166139 is about 280.9075104144.

The spelling of 22166139 in words is "twenty-two million, one hundred sixty-six thousand, one hundred thirty-nine".