86131 has 2 divisors, whose sum is σ = 86132. Its totient is φ = 86130.

The previous prime is 86117. The next prime is 86137. The reversal of 86131 is 13168.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86131 - 2⁹ = 85619 is a prime.

It is a super-2 number, since 2×86131² = 14837098322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86099 and 86108.

It is not a weakly prime, because it can be changed into another prime (86137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43065 + 43066.

It is an arithmetic number, because the mean of its divisors is an integer number (43066).

2⁸⁶¹³¹ is an apocalyptic number.

86131 is a deficient number, since it is larger than the sum of its proper divisors (1).

86131 is an equidigital number, since it uses as much as digits as its factorization.

86131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 86131 is about 293.4808341272. The cubic root of 86131 is about 44.1624504499.

Adding to 86131 its reverse (13168), we get a palindrome (99299).

The spelling of 86131 in words is "eighty-six thousand, one hundred thirty-one".