22173158 has 16 divisors (see below), whose sum is σ = 38548224. Its totient is φ = 9368520.

The previous prime is 22173157. The next prime is 22173187. The reversal of 22173158 is 85137122.

It is a self number, because there is not a number n which added to its sum of digits gives 22173158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22173157) 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, 10160 + ... + 12147.

It is an arithmetic number, because the mean of its divisors is an integer number (2409264).

Almost surely, 2^22173158 is an apocalyptic number.

22173158 is a deficient number, since it is larger than the sum of its proper divisors (16375066).

22173158 is a wasteful number, since it uses less digits than its factorization.

22173158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22387.

The product of its digits is 3360, while the sum is 29.

The square root of 22173158 is about 4708.8382856072. The cubic root of 22173158 is about 280.9371574621.

The spelling of 22173158 in words is "twenty-two million, one hundred seventy-three thousand, one hundred fifty-eight".