86180231 has 4 divisors (see below), whose sum is σ = 87271200. Its totient is φ = 85089264.

The previous prime is 86180221. The next prime is 86180267. The reversal of 86180231 is 13208168.

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

It is a cyclic number.

It is not a de Polignac number, because 86180231 - 2⁶ = 86180167 is a prime.

It is a super-2 number, since 2×86180231² = 14854064430426722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86180194 and 86180203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86180221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545366 + ... + 545523.

It is an arithmetic number, because the mean of its divisors is an integer number (21817800).

Almost surely, 2^86180231 is an apocalyptic number.

86180231 is a deficient number, since it is larger than the sum of its proper divisors (1090969).

86180231 is a wasteful number, since it uses less digits than its factorization.

86180231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090968.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 86180231 is about 9283.3308138836. The cubic root of 86180231 is about 441.7086301333.

Adding to 86180231 its reverse (13208168), we get a palindrome (99388399).

The spelling of 86180231 in words is "eighty-six million, one hundred eighty thousand, two hundred thirty-one".