13144939 has 2 divisors, whose sum is σ = 13144940. Its totient is φ = 13144938.

The previous prime is 13144919. The next prime is 13144949. The reversal of 13144939 is 93944131.

13144939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13144939 - 2¹¹ = 13142891 is a prime.

It is not a weakly prime, because it can be changed into another prime (13144919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6572469 + 6572470.

It is an arithmetic number, because the mean of its divisors is an integer number (6572470).

Almost surely, 2^13144939 is an apocalyptic number.

13144939 is a deficient number, since it is larger than the sum of its proper divisors (1).

13144939 is an equidigital number, since it uses as much as digits as its factorization.

13144939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 13144939 is about 3625.5949856541. The cubic root of 13144939 is about 236.0040875956.

It can be divided in two parts, 1314 and 4939, that multiplied together give a palindrome (6489846).

The spelling of 13144939 in words is "thirteen million, one hundred forty-four thousand, nine hundred thirty-nine".