85108259 has 2 divisors, whose sum is σ = 85108260. Its totient is φ = 85108258.

The previous prime is 85108249. The next prime is 85108271. The reversal of 85108259 is 95280158.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85108259 is a prime.

It is a super-2 number, since 2×85108259² = 14486831500022162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85108229) 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, 42554129 + 42554130.

It is an arithmetic number, because the mean of its divisors is an integer number (42554130).

Almost surely, 2^85108259 is an apocalyptic number.

85108259 is a deficient number, since it is larger than the sum of its proper divisors (1).

85108259 is an equidigital number, since it uses as much as digits as its factorization.

85108259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 85108259 is about 9225.4137576588. The cubic root of 85108259 is about 439.8695532725.

The spelling of 85108259 in words is "eighty-five million, one hundred eight thousand, two hundred fifty-nine".