13050391 has 4 divisors (see below), whose sum is σ = 13104784. Its totient is φ = 12996000.

The previous prime is 13050379. The next prime is 13050403. The reversal of 13050391 is 19305031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19305031 = 2711 ⋅7121.

It is an interprime number because it is at equal distance from previous prime (13050379) and next prime (13050403).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13050391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13050091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26835 + ... + 27316.

It is an arithmetic number, because the mean of its divisors is an integer number (3276196).

Almost surely, 2^13050391 is an apocalyptic number.

13050391 is a deficient number, since it is larger than the sum of its proper divisors (54393).

13050391 is an equidigital number, since it uses as much as digits as its factorization.

13050391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54392.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 13050391 is about 3612.5324912034. The cubic root of 13050391 is about 235.4368875975.

The spelling of 13050391 in words is "thirteen million, fifty thousand, three hundred ninety-one".