85312274 has 8 divisors (see below), whose sum is σ = 128444940. Its totient is φ = 42497296.

The previous prime is 85312259. The next prime is 85312319. The reversal of 85312274 is 47221358.

It can be written as a sum of positive squares in 2 ways, for example, as 84511249 + 801025 = 9193^2 + 895^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85312274.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78749 + ... + 79824.

Almost surely, 2^85312274 is an apocalyptic number.

85312274 is a deficient number, since it is larger than the sum of its proper divisors (43132666).

85312274 is a wasteful number, since it uses less digits than its factorization.

85312274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158844.

The product of its digits is 13440, while the sum is 32.

The square root of 85312274 is about 9236.4643668451. The cubic root of 85312274 is about 440.2207466716.

The spelling of 85312274 in words is "eighty-five million, three hundred twelve thousand, two hundred seventy-four".