85142812 has 6 divisors (see below), whose sum is σ = 148999928. Its totient is φ = 42571404.

The previous prime is 85142807. The next prime is 85142821. The reversal of 85142812 is 21824158.

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, 10642848 + ... + 10642855.

Almost surely, 2^85142812 is an apocalyptic number.

It is an amenable number.

85142812 is a deficient number, since it is larger than the sum of its proper divisors (63857116).

85142812 is a wasteful number, since it uses less digits than its factorization.

85142812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21285707 (or 21285705 counting only the distinct ones).

The product of its digits is 5120, while the sum is 31.

The square root of 85142812 is about 9227.2862749565. The cubic root of 85142812 is about 439.9290725892.

The spelling of 85142812 in words is "eighty-five million, one hundred forty-two thousand, eight hundred twelve".