85118413 has 2 divisors, whose sum is σ = 85118414. Its totient is φ = 85118412.

The previous prime is 85118359. The next prime is 85118441. The reversal of 85118413 is 31481158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64931364 + 20187049 = 8058^2 + 4493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85118413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85118483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42559206 + 42559207.

It is an arithmetic number, because the mean of its divisors is an integer number (42559207).

Almost surely, 2^85118413 is an apocalyptic number.

It is an amenable number.

85118413 is a deficient number, since it is larger than the sum of its proper divisors (1).

85118413 is an equidigital number, since it uses as much as digits as its factorization.

85118413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 31.

The square root of 85118413 is about 9225.9640688656. The cubic root of 85118413 is about 439.8870457300.

The spelling of 85118413 in words is "eighty-five million, one hundred eighteen thousand, four hundred thirteen".