22494193 has 2 divisors, whose sum is σ = 22494194. Its totient is φ = 22494192.

The previous prime is 22494191. The next prime is 22494209. The reversal of 22494193 is 39149422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14837904 + 7656289 = 3852^2 + 2767^2 .

It is a cyclic number.

It is not a de Polignac number, because 22494193 - 2¹ = 22494191 is a prime.

Together with 22494191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22494191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11247096 + 11247097.

It is an arithmetic number, because the mean of its divisors is an integer number (11247097).

Almost surely, 2^22494193 is an apocalyptic number.

It is an amenable number.

22494193 is a deficient number, since it is larger than the sum of its proper divisors (1).

22494193 is an equidigital number, since it uses as much as digits as its factorization.

22494193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 22494193 is about 4742.8043392069. The cubic root of 22494193 is about 282.2865194803.

It can be divided in two parts, 2249419 and 3, that added together give a palindrome (2249422).

The spelling of 22494193 in words is "twenty-two million, four hundred ninety-four thousand, one hundred ninety-three".