85112179 has 4 divisors (see below), whose sum is σ = 87091576. Its totient is φ = 83132784.

The previous prime is 85112171. The next prime is 85112219. The reversal of 85112179 is 97121158.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85112179 - 2³ = 85112171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85112171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989634 + ... + 989719.

It is an arithmetic number, because the mean of its divisors is an integer number (21772894).

Almost surely, 2^85112179 is an apocalyptic number.

85112179 is a deficient number, since it is larger than the sum of its proper divisors (1979397).

85112179 is a wasteful number, since it uses less digits than its factorization.

85112179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979396.

The product of its digits is 5040, while the sum is 34.

The square root of 85112179 is about 9225.6262118081. The cubic root of 85112179 is about 439.8763064838.

The spelling of 85112179 in words is "eighty-five million, one hundred twelve thousand, one hundred seventy-nine".