85151564 has 12 divisors (see below), whose sum is σ = 149200800. Its totient is φ = 42522768.

The previous prime is 85151537. The next prime is 85151579. The reversal of 85151564 is 46515158.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9524 + ... + 16155.

It is an arithmetic number, because the mean of its divisors is an integer number (12433400).

Almost surely, 2^85151564 is an apocalyptic number.

It is an amenable number.

85151564 is a deficient number, since it is larger than the sum of its proper divisors (64049236).

85151564 is a wasteful number, since it uses less digits than its factorization.

85151564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26512 (or 26510 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

The square root of 85151564 is about 9227.7605083791. The cubic root of 85151564 is about 439.9441458027.

The spelling of 85151564 in words is "eighty-five million, one hundred fifty-one thousand, five hundred sixty-four".