13564297 has 2 divisors, whose sum is σ = 13564298. Its totient is φ = 13564296.

The previous prime is 13564289. The next prime is 13564301. The reversal of 13564297 is 79246531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11999296 + 1565001 = 3464^2 + 1251^2 .

It is a cyclic number.

It is not a de Polignac number, because 13564297 - 2³ = 13564289 is a prime.

It is not a weakly prime, because it can be changed into another prime (13564207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6782148 + 6782149.

It is an arithmetic number, because the mean of its divisors is an integer number (6782149).

Almost surely, 2^13564297 is an apocalyptic number.

It is an amenable number.

13564297 is a deficient number, since it is larger than the sum of its proper divisors (1).

13564297 is an equidigital number, since it uses as much as digits as its factorization.

13564297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 13564297 is about 3682.9739342005. The cubic root of 13564297 is about 238.4875782258.

It can be divided in two parts, 13564 and 297, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 13564297 in words is "thirteen million, five hundred sixty-four thousand, two hundred ninety-seven".