22529197 has 2 divisors, whose sum is σ = 22529198. Its totient is φ = 22529196.

The previous prime is 22529183. The next prime is 22529203. The reversal of 22529197 is 79192522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21261321 + 1267876 = 4611^2 + 1126^2 .

It is a cyclic number.

It is not a de Polignac number, because 22529197 - 2¹¹ = 22527149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22529147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11264598 + 11264599.

It is an arithmetic number, because the mean of its divisors is an integer number (11264599).

Almost surely, 2^22529197 is an apocalyptic number.

It is an amenable number.

22529197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22529197 is an equidigital number, since it uses as much as digits as its factorization.

22529197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 22529197 is about 4746.4931265093. The cubic root of 22529197 is about 282.4328689001.

It can be divided in two parts, 2252 and 9197, that added together give a square (11449 = 107²).

The spelling of 22529197 in words is "twenty-two million, five hundred twenty-nine thousand, one hundred ninety-seven".