85115113 has 2 divisors, whose sum is σ = 85115114. Its totient is φ = 85115112.

The previous prime is 85115099. The next prime is 85115137. The reversal of 85115113 is 31151158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84695209 + 419904 = 9203^2 + 648^2 .

It is a cyclic number.

It is not a de Polignac number, because 85115113 - 2⁵ = 85115081 is a prime.

It is a super-2 number, since 2×85115113² = 14489164922005538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85115213) 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, 42557556 + 42557557.

It is an arithmetic number, because the mean of its divisors is an integer number (42557557).

Almost surely, 2^85115113 is an apocalyptic number.

It is an amenable number.

85115113 is a deficient number, since it is larger than the sum of its proper divisors (1).

85115113 is an equidigital number, since it uses as much as digits as its factorization.

85115113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 25.

The square root of 85115113 is about 9225.7852240338. The cubic root of 85115113 is about 439.8813609200.

The spelling of 85115113 in words is "eighty-five million, one hundred fifteen thousand, one hundred thirteen".