214565317 has 2 divisors, whose sum is σ = 214565318. Its totient is φ = 214565316.

The previous prime is 214565311. The next prime is 214565339. The reversal of 214565317 is 713565412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212401476 + 2163841 = 14574^2 + 1471^2 .

It is a cyclic number.

It is not a de Polignac number, because 214565317 - 2²³ = 206176709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214565311) 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, 107282658 + 107282659.

It is an arithmetic number, because the mean of its divisors is an integer number (107282659).

Almost surely, 2^214565317 is an apocalyptic number.

It is an amenable number.

214565317 is a deficient number, since it is larger than the sum of its proper divisors (1).

214565317 is an equidigital number, since it uses as much as digits as its factorization.

214565317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 214565317 is about 14648.0482317611. The cubic root of 214565317 is about 598.6686377910.

The spelling of 214565317 in words is "two hundred fourteen million, five hundred sixty-five thousand, three hundred seventeen".