102539317 has 2 divisors, whose sum is σ = 102539318. Its totient is φ = 102539316.

The previous prime is 102539299. The next prime is 102539323. The reversal of 102539317 is 713935201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90801841 + 11737476 = 9529^2 + 3426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102539317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102539347) 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, 51269658 + 51269659.

It is an arithmetic number, because the mean of its divisors is an integer number (51269659).

Almost surely, 2^102539317 is an apocalyptic number.

It is an amenable number.

102539317 is a deficient number, since it is larger than the sum of its proper divisors (1).

102539317 is an equidigital number, since it uses as much as digits as its factorization.

102539317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 102539317 is about 10126.1699077193. The cubic root of 102539317 is about 468.0549114350.

The spelling of 102539317 in words is "one hundred two million, five hundred thirty-nine thousand, three hundred seventeen".