22579189 has 2 divisors, whose sum is σ = 22579190. Its totient is φ = 22579188.

The previous prime is 22579187. The next prime is 22579229. The reversal of 22579189 is 98197522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17783089 + 4796100 = 4217^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 22579189 - 2¹ = 22579187 is a prime.

Together with 22579187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22579187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11289594 + 11289595.

It is an arithmetic number, because the mean of its divisors is an integer number (11289595).

Almost surely, 2^22579189 is an apocalyptic number.

It is an amenable number.

22579189 is a deficient number, since it is larger than the sum of its proper divisors (1).

22579189 is an equidigital number, since it uses as much as digits as its factorization.

22579189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 43.

The square root of 22579189 is about 4751.7564121070. The cubic root of 22579189 is about 282.6416195457.

The spelling of 22579189 in words is "twenty-two million, five hundred seventy-nine thousand, one hundred eighty-nine".