13595609 has 2 divisors, whose sum is σ = 13595610. Its totient is φ = 13595608.

The previous prime is 13595581. The next prime is 13595633. The reversal of 13595609 is 90659531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13579225 + 16384 = 3685^2 + 128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13595609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13595669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6797804 + 6797805.

It is an arithmetic number, because the mean of its divisors is an integer number (6797805).

Almost surely, 2^13595609 is an apocalyptic number.

It is an amenable number.

13595609 is a deficient number, since it is larger than the sum of its proper divisors (1).

13595609 is an equidigital number, since it uses as much as digits as its factorization.

13595609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 13595609 is about 3687.2223963303. Note that the first 3 decimals coincide. The cubic root of 13595609 is about 238.6709464796.

The spelling of 13595609 in words is "thirteen million, five hundred ninety-five thousand, six hundred nine".