22139995 has 8 divisors (see below), whose sum is σ = 26706816. Its totient is φ = 17619456.

The previous prime is 22139993. The next prime is 22140029. The reversal of 22139995 is 59993122.

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

It is a cyclic number.

It is not a de Polignac number, because 22139995 - 2¹ = 22139993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22139993) 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 7 ways as a sum of consecutive naturals, for example, 10507 + ... + 12436.

It is an arithmetic number, because the mean of its divisors is an integer number (3338352).

Almost surely, 2^22139995 is an apocalyptic number.

22139995 is a deficient number, since it is larger than the sum of its proper divisors (4566821).

22139995 is a wasteful number, since it uses less digits than its factorization.

22139995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23141.

The product of its digits is 43740, while the sum is 40.

The square root of 22139995 is about 4705.3156110935. The cubic root of 22139995 is about 280.7970275562.

The spelling of 22139995 in words is "twenty-two million, one hundred thirty-nine thousand, nine hundred ninety-five".