85123183 has 8 divisors (see below), whose sum is σ = 86920400. Its totient is φ = 83343168.

The previous prime is 85123163. The next prime is 85123231. The reversal of 85123183 is 38132158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85123183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85123123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5953 + ... + 14341.

It is an arithmetic number, because the mean of its divisors is an integer number (10865050).

Almost surely, 2^85123183 is an apocalyptic number.

85123183 is a deficient number, since it is larger than the sum of its proper divisors (1797217).

85123183 is a wasteful number, since it uses less digits than its factorization.

85123183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8601.

The product of its digits is 5760, while the sum is 31.

The square root of 85123183 is about 9226.2225748136. Note that the first 3 decimals coincide. The cubic root of 85123183 is about 439.8952626048.

Subtracting from 85123183 its reverse (38132158), we obtain a square (46991025 = 6855²).

The spelling of 85123183 in words is "eighty-five million, one hundred twenty-three thousand, one hundred eighty-three".