22136497 has 2 divisors, whose sum is σ = 22136498. Its totient is φ = 22136496.

The previous prime is 22136489. The next prime is 22136503. The reversal of 22136497 is 79463122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18011536 + 4124961 = 4244^2 + 2031^2 .

It is a cyclic number.

It is not a de Polignac number, because 22136497 - 2³ = 22136489 is a prime.

It is not a weakly prime, because it can be changed into another prime (22136407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11068248 + 11068249.

It is an arithmetic number, because the mean of its divisors is an integer number (11068249).

Almost surely, 2^22136497 is an apocalyptic number.

It is an amenable number.

22136497 is a deficient number, since it is larger than the sum of its proper divisors (1).

22136497 is an equidigital number, since it uses as much as digits as its factorization.

22136497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 22136497 is about 4704.9438891447. The cubic root of 22136497 is about 280.7822386379.

The spelling of 22136497 in words is "twenty-two million, one hundred thirty-six thousand, four hundred ninety-seven".