85149812 has 24 divisors (see below), whose sum is σ = 162836352. Its totient is φ = 38638400.

The previous prime is 85149781. The next prime is 85149833. The reversal of 85149812 is 21894158.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 32213 + ... + 34755.

It is an arithmetic number, because the mean of its divisors is an integer number (6784848).

Almost surely, 2^85149812 is an apocalyptic number.

It is an amenable number.

85149812 is a deficient number, since it is larger than the sum of its proper divisors (77686540).

85149812 is a wasteful number, since it uses less digits than its factorization.

85149812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319 (or 3317 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 85149812 is about 9227.6655769485. The cubic root of 85149812 is about 439.9411284870.

The spelling of 85149812 in words is "eighty-five million, one hundred forty-nine thousand, eight hundred twelve".