85418111 has 2 divisors, whose sum is σ = 85418112. Its totient is φ = 85418110.

The previous prime is 85418087. The next prime is 85418131. The reversal of 85418111 is 11181458.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85418111 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85418131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42709055 + 42709056.

It is an arithmetic number, because the mean of its divisors is an integer number (42709056).

Almost surely, 2^85418111 is an apocalyptic number.

85418111 is a deficient number, since it is larger than the sum of its proper divisors (1).

85418111 is an equidigital number, since it uses as much as digits as its factorization.

85418111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 29.

The square root of 85418111 is about 9242.1918937014. The cubic root of 85418111 is about 440.4027149758.

Adding to 85418111 its reverse (11181458), we get a palindrome (96599569).

The spelling of 85418111 in words is "eighty-five million, four hundred eighteen thousand, one hundred eleven".