13144591 has 2 divisors, whose sum is σ = 13144592. Its totient is φ = 13144590.

The previous prime is 13144577. The next prime is 13144597. The reversal of 13144591 is 19544131.

It is a strong prime.

It is an emirp because it is prime and its reverse (19544131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13144591 - 2¹³ = 13136399 is a prime.

It is equal to p₈₅₈₀₁₆ and since 13144591 and 858016 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13144597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572295 + 6572296.

It is an arithmetic number, because the mean of its divisors is an integer number (6572296).

Almost surely, 2^13144591 is an apocalyptic number.

13144591 is a deficient number, since it is larger than the sum of its proper divisors (1).

13144591 is an equidigital number, since it uses as much as digits as its factorization.

13144591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 13144591 is about 3625.5469932136. The cubic root of 13144591 is about 236.0020049145.

The spelling of 13144591 in words is "thirteen million, one hundred forty-four thousand, five hundred ninety-one".