85422178 has 8 divisors (see below), whose sum is σ = 135670572. Its totient is φ = 40198656.

The previous prime is 85422149. The next prime is 85422187. The reversal of 85422178 is 87122458.

It can be written as a sum of positive squares in 2 ways, for example, as 85248289 + 173889 = 9233^2 + 417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256175 + ... + 1256242.

Almost surely, 2^85422178 is an apocalyptic number.

85422178 is a deficient number, since it is larger than the sum of its proper divisors (50248394).

85422178 is a wasteful number, since it uses less digits than its factorization.

85422178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512436.

The product of its digits is 35840, while the sum is 37.

The square root of 85422178 is about 9242.4119146465. The cubic root of 85422178 is about 440.4097044748.

It can be divided in two parts, 854 and 22178, that added together give a palindrome (23032).

The spelling of 85422178 in words is "eighty-five million, four hundred twenty-two thousand, one hundred seventy-eight".