85164512 has 12 divisors (see below), whose sum is σ = 167667696. Its totient is φ = 42582240.

The previous prime is 85164473. The next prime is 85164523. The reversal of 85164512 is 21546158.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2661391 = 85164512 / (8 + 5 + 1 + 6 + 4 + 5 + 1 + 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, 1330664 + ... + 1330727.

It is an arithmetic number, because the mean of its divisors is an integer number (13972308).

Almost surely, 2^85164512 is an apocalyptic number.

It is an amenable number.

85164512 is a deficient number, since it is larger than the sum of its proper divisors (82503184).

85164512 is a wasteful number, since it uses less digits than its factorization.

85164512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661401 (or 2661393 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 85164512 is about 9228.4620603869. The cubic root of 85164512 is about 439.9664437219.

The spelling of 85164512 in words is "eighty-five million, one hundred sixty-four thousand, five hundred twelve".