22198459 has 2 divisors, whose sum is σ = 22198460. Its totient is φ = 22198458.

The previous prime is 22198453. The next prime is 22198489. The reversal of 22198459 is 95489122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22198459 - 2⁷ = 22198331 is a prime.

It is not a weakly prime, because it can be changed into another prime (22198453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11099229 + 11099230.

It is an arithmetic number, because the mean of its divisors is an integer number (11099230).

Almost surely, 2^22198459 is an apocalyptic number.

22198459 is a deficient number, since it is larger than the sum of its proper divisors (1).

22198459 is an equidigital number, since it uses as much as digits as its factorization.

22198459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 22198459 is about 4711.5240634003. The cubic root of 22198459 is about 281.0439726358.

The spelling of 22198459 in words is "twenty-two million, one hundred ninety-eight thousand, four hundred fifty-nine".