13522909 has 2 divisors, whose sum is σ = 13522910. Its totient is φ = 13522908.

The previous prime is 13522879. The next prime is 13522921. The reversal of 13522909 is 90922531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7868025 + 5654884 = 2805^2 + 2378^2 .

It is a cyclic number.

It is not a de Polignac number, because 13522909 - 2⁵ = 13522877 is a prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13522979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6761454 + 6761455.

It is an arithmetic number, because the mean of its divisors is an integer number (6761455).

Almost surely, 2^13522909 is an apocalyptic number.

It is an amenable number.

13522909 is a deficient number, since it is larger than the sum of its proper divisors (1).

13522909 is an equidigital number, since it uses as much as digits as its factorization.

13522909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 13522909 is about 3677.3508127455. The cubic root of 13522909 is about 238.2447697197.

The spelling of 13522909 in words is "thirteen million, five hundred twenty-two thousand, nine hundred nine".