22091173 has 12 divisors (see below), whose sum is σ = 24290688. Its totient is φ = 20077200.

The previous prime is 22091171. The next prime is 22091191. The reversal of 22091173 is 37119022.

It is not a de Polignac number, because 22091173 - 2¹ = 22091171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22091171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10348 + ... + 12298.

It is an arithmetic number, because the mean of its divisors is an integer number (2024224).

Almost surely, 2^22091173 is an apocalyptic number.

It is an amenable number.

22091173 is a deficient number, since it is larger than the sum of its proper divisors (2199515).

22091173 is a wasteful number, since it uses less digits than its factorization.

22091173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 22091173 is about 4700.1247855775. The cubic root of 22091173 is about 280.5904758430.

The spelling of 22091173 in words is "twenty-two million, ninety-one thousand, one hundred seventy-three".