13290391 has 2 divisors, whose sum is σ = 13290392. Its totient is φ = 13290390.

The previous prime is 13290383. The next prime is 13290401. The reversal of 13290391 is 19309231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13290391 - 2³ = 13290383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13290491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6645195 + 6645196.

It is an arithmetic number, because the mean of its divisors is an integer number (6645196).

Almost surely, 2^13290391 is an apocalyptic number.

13290391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13290391 is an equidigital number, since it uses as much as digits as its factorization.

13290391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 13290391 is about 3645.5988534122. The cubic root of 13290391 is about 236.8713776849.

The spelling of 13290391 in words is "thirteen million, two hundred ninety thousand, three hundred ninety-one".