85315142 has 32 divisors (see below), whose sum is σ = 146845440. Its totient is φ = 36796320.

The previous prime is 85315127. The next prime is 85315147. The reversal of 85315142 is 24151358.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85315147) 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 15 ways as a sum of consecutive naturals, for example, 69728 + ... + 70940.

It is an arithmetic number, because the mean of its divisors is an integer number (4588920).

Almost surely, 2^85315142 is an apocalyptic number.

85315142 is a deficient number, since it is larger than the sum of its proper divisors (61530298).

85315142 is a wasteful number, since it uses less digits than its factorization.

85315142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its digits is 4800, while the sum is 29.

The square root of 85315142 is about 9236.6196197527. The cubic root of 85315142 is about 440.2256796818.

The spelling of 85315142 in words is "eighty-five million, three hundred fifteen thousand, one hundred forty-two".