22123859 has 2 divisors, whose sum is σ = 22123860. Its totient is φ = 22123858.

The previous prime is 22123853. The next prime is 22123877. The reversal of 22123859 is 95832122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22123859 - 2⁸ = 22123603 is a prime.

It is not a weakly prime, because it can be changed into another prime (22123853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061929 + 11061930.

It is an arithmetic number, because the mean of its divisors is an integer number (11061930).

Almost surely, 2^22123859 is an apocalyptic number.

22123859 is a deficient number, since it is larger than the sum of its proper divisors (1).

22123859 is an equidigital number, since it uses as much as digits as its factorization.

22123859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 22123859 is about 4703.6006420614. The cubic root of 22123859 is about 280.7287944480.

The spelling of 22123859 in words is "twenty-two million, one hundred twenty-three thousand, eight hundred fifty-nine".