85273131 has 16 divisors (see below), whose sum is σ = 116328960. Its totient is φ = 55542240.

The previous prime is 85273127. The next prime is 85273141. The reversal of 85273131 is 13137258.

It is not a de Polignac number, because 85273131 - 2² = 85273127 is a prime.

It is a super-2 number, since 2×85273131² = 14543013741086322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85273141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42100 + ... + 44078.

It is an arithmetic number, because the mean of its divisors is an integer number (7270560).

Almost surely, 2^85273131 is an apocalyptic number.

85273131 is a deficient number, since it is larger than the sum of its proper divisors (31055829).

85273131 is a wasteful number, since it uses less digits than its factorization.

85273131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306.

The product of its digits is 5040, while the sum is 30.

The square root of 85273131 is about 9234.3451852311. The cubic root of 85273131 is about 440.1534089723.

The spelling of 85273131 in words is "eighty-five million, two hundred seventy-three thousand, one hundred thirty-one".