13940317 has 2 divisors, whose sum is σ = 13940318. Its totient is φ = 13940316.

The previous prime is 13940293. The next prime is 13940321. The reversal of 13940317 is 71304931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9803161 + 4137156 = 3131^2 + 2034^2 .

It is a cyclic number.

It is not a de Polignac number, because 13940317 - 2⁷ = 13940189 is a prime.

It is equal to p₉₀₆₅₀₈ and since 13940317 and 906508 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 (13940347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6970158 + 6970159.

It is an arithmetic number, because the mean of its divisors is an integer number (6970159).

Almost surely, 2^13940317 is an apocalyptic number.

It is an amenable number.

13940317 is a deficient number, since it is larger than the sum of its proper divisors (1).

13940317 is an equidigital number, since it uses as much as digits as its factorization.

13940317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13940317 is about 3733.6733922506. The cubic root of 13940317 is about 240.6712516253.

The spelling of 13940317 in words is "thirteen million, nine hundred forty thousand, three hundred seventeen".