86118225 has 24 divisors (see below), whose sum is σ = 142669440. Its totient is φ = 45837120.

The previous prime is 86118223. The next prime is 86118247. The reversal of 86118225 is 52281168.

It is not a de Polignac number, because 86118225 - 2¹ = 86118223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86118223) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 53127 + ... + 54723.

It is an arithmetic number, because the mean of its divisors is an integer number (5944560).

Almost surely, 2^86118225 is an apocalyptic number.

It is an amenable number.

86118225 is a deficient number, since it is larger than the sum of its proper divisors (56551215).

86118225 is a wasteful number, since it uses less digits than its factorization.

86118225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329 (or 2324 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 86118225 is about 9279.9905711159. The cubic root of 86118225 is about 441.6026694188.

It can be divided in two parts, 8611 and 8225, that added together give a triangular number (16836 = T₁₈₃).

The spelling of 86118225 in words is "eighty-six million, one hundred eighteen thousand, two hundred twenty-five".