185000317 has 2 divisors, whose sum is σ = 185000318. Its totient is φ = 185000316.

The previous prime is 185000311. The next prime is 185000371. The reversal of 185000317 is 713000581.

Together with next prime (185000371) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138909796 + 46090521 = 11786^2 + 6789^2 .

It is a cyclic number.

It is not a de Polignac number, because 185000317 - 2¹⁹ = 184476029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 185000291 and 185000300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (185000311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92500158 + 92500159.

It is an arithmetic number, because the mean of its divisors is an integer number (92500159).

Almost surely, 2^185000317 is an apocalyptic number.

It is an amenable number.

185000317 is a deficient number, since it is larger than the sum of its proper divisors (1).

185000317 is an equidigital number, since it uses as much as digits as its factorization.

185000317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 185000317 is about 13601.4821618822. The cubic root of 185000317 is about 569.8022469848.

Adding to 185000317 its reverse (713000581), we get a palindrome (898000898).

The spelling of 185000317 in words is "one hundred eighty-five million, three hundred seventeen", and thus it is an aban number.