85168319 has 2 divisors, whose sum is σ = 85168320. Its totient is φ = 85168318.

The previous prime is 85168313. The next prime is 85168327. The reversal of 85168319 is 91386158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85168319 - 2⁸ = 85168063 is a prime.

It is a super-2 number, since 2×85168319² = 14507285122571522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85168313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42584159 + 42584160.

It is an arithmetic number, because the mean of its divisors is an integer number (42584160).

Almost surely, 2^85168319 is an apocalyptic number.

85168319 is a deficient number, since it is larger than the sum of its proper divisors (1).

85168319 is an equidigital number, since it uses as much as digits as its factorization.

85168319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The square root of 85168319 is about 9228.6683221362. The cubic root of 85168319 is about 439.9729993762.

The spelling of 85168319 in words is "eighty-five million, one hundred sixty-eight thousand, three hundred nineteen".