13913737 has 2 divisors, whose sum is σ = 13913738. Its totient is φ = 13913736.

The previous prime is 13913729. The next prime is 13913743. The reversal of 13913737 is 73731931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7070281 + 6843456 = 2659^2 + 2616^2 .

It is a cyclic number.

It is not a de Polignac number, because 13913737 - 2³ = 13913729 is a prime.

It is not a weakly prime, because it can be changed into another prime (13913437) 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 as a sum of consecutive naturals, namely, 6956868 + 6956869.

It is an arithmetic number, because the mean of its divisors is an integer number (6956869).

Almost surely, 2^13913737 is an apocalyptic number.

It is an amenable number.

13913737 is a deficient number, since it is larger than the sum of its proper divisors (1).

13913737 is an equidigital number, since it uses as much as digits as its factorization.

13913737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11907, while the sum is 34.

The square root of 13913737 is about 3730.1121967040. The cubic root of 13913737 is about 240.5181916931.

The spelling of 13913737 in words is "thirteen million, nine hundred thirteen thousand, seven hundred thirty-seven".