85220182 has 4 divisors (see below), whose sum is σ = 127830276. Its totient is φ = 42610090.

The previous prime is 85220123. The next prime is 85220207. The reversal of 85220182 is 28102258.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×85220182² = 14524958840226248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85220182.

It is a congruent 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 as a sum of consecutive naturals, namely, 21305044 + ... + 21305047.

It is an arithmetic number, because the mean of its divisors is an integer number (31957569).

Almost surely, 2^85220182 is an apocalyptic number.

85220182 is a deficient number, since it is larger than the sum of its proper divisors (42610094).

85220182 is a wasteful number, since it uses less digits than its factorization.

85220182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42610093.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 85220182 is about 9231.4777798574. The cubic root of 85220182 is about 440.0622880138.

The spelling of 85220182 in words is "eighty-five million, two hundred twenty thousand, one hundred eighty-two".