13038391 has 2 divisors, whose sum is σ = 13038392. Its totient is φ = 13038390.

The previous prime is 13038373. The next prime is 13038407. The reversal of 13038391 is 19383031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13038391 - 2¹⁵ = 13005623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13038691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6519195 + 6519196.

It is an arithmetic number, because the mean of its divisors is an integer number (6519196).

Almost surely, 2^13038391 is an apocalyptic number.

13038391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13038391 is an equidigital number, since it uses as much as digits as its factorization.

13038391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 13038391 is about 3610.8712245108. The cubic root of 13038391 is about 235.3647030670.

The spelling of 13038391 in words is "thirteen million, thirty-eight thousand, three hundred ninety-one".