85156842 has 32 divisors (see below), whose sum is σ = 180823104. Its totient is φ = 26643200.

The previous prime is 85156823. The next prime is 85156843. The reversal of 85156842 is 24865158.

It is a self number, because there is not a number n which added to its sum of digits gives 85156842.

It is not an unprimeable number, because it can be changed into a prime (85156843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46117 + ... + 47927.

It is an arithmetic number, because the mean of its divisors is an integer number (5650722).

Almost surely, 2^85156842 is an apocalyptic number.

85156842 is an abundant number, since it is smaller than the sum of its proper divisors (95666262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85156842 is a wasteful number, since it uses less digits than its factorization.

85156842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294.

The product of its digits is 76800, while the sum is 39.

The square root of 85156842 is about 9228.0464888296. The cubic root of 85156842 is about 439.9532353880.

The spelling of 85156842 in words is "eighty-five million, one hundred fifty-six thousand, eight hundred forty-two".