85121104 has 10 divisors (see below), whose sum is σ = 164922170. Its totient is φ = 42560544.

The previous prime is 85121087. The next prime is 85121117. The reversal of 85121104 is 40112158.

It can be written as a sum of positive squares in only one way, i.e., 59598400 + 25522704 = 7720^2 + 5052^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660019 + ... + 2660050.

It is an arithmetic number, because the mean of its divisors is an integer number (16492217).

Almost surely, 2^85121104 is an apocalyptic number.

It is an amenable number.

85121104 is a deficient number, since it is larger than the sum of its proper divisors (79801066).

85121104 is a wasteful number, since it uses less digits than its factorization.

85121104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320077 (or 5320071 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 85121104 is about 9226.1099061305. The cubic root of 85121104 is about 439.8916813254.

The spelling of 85121104 in words is "eighty-five million, one hundred twenty-one thousand, one hundred four".