86198125 has 30 divisors (see below), whose sum is σ = 117135942. Its totient is φ = 63036000.

The previous prime is 86198107. The next prime is 86198129. The reversal of 86198125 is 52189168.

It can be written as a sum of positive squares in 5 ways, for example, as 50509449 + 35688676 = 7107^2 + 5974^2 .

It is not a de Polignac number, because 86198125 - 2⁹ = 86197613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86198129) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 836824 + ... + 836926.

Almost surely, 2^86198125 is an apocalyptic number.

It is an amenable number.

86198125 is a deficient number, since it is larger than the sum of its proper divisors (30937817).

86198125 is an equidigital number, since it uses as much as digits as its factorization.

86198125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 121 counting only the distinct ones).

The product of its digits is 34560, while the sum is 40.

The square root of 86198125 is about 9284.2945343198. The cubic root of 86198125 is about 441.7391993530.

The spelling of 86198125 in words is "eighty-six million, one hundred ninety-eight thousand, one hundred twenty-five".