13240369 has 2 divisors, whose sum is σ = 13240370. Its totient is φ = 13240368.

The previous prime is 13240363. The next prime is 13240391. The reversal of 13240369 is 96304231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 1129969 = 3480^2 + 1063^2 .

It is an emirp because it is prime and its reverse (96304231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13240369 - 2⁹ = 13239857 is a prime.

It is a super-2 number, since 2×13240369² = 350614742512322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13240363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6620184 + 6620185.

It is an arithmetic number, because the mean of its divisors is an integer number (6620185).

Almost surely, 2^13240369 is an apocalyptic number.

It is an amenable number.

13240369 is a deficient number, since it is larger than the sum of its proper divisors (1).

13240369 is an equidigital number, since it uses as much as digits as its factorization.

13240369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 13240369 is about 3638.7317845645. The cubic root of 13240369 is about 236.5738274578.

The spelling of 13240369 in words is "thirteen million, two hundred forty thousand, three hundred sixty-nine".