86372131 has 2 divisors, whose sum is σ = 86372132. Its totient is φ = 86372130.

The previous prime is 86372129. The next prime is 86372197. The reversal of 86372131 is 13127368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86372131 - 2¹ = 86372129 is a prime.

It is a super-2 number, since 2×86372131² = 14920290026962322, which contains 22 as substring.

Together with 86372129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 86372093 and 86372102.

It is not a weakly prime, because it can be changed into another prime (86372101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43186065 + 43186066.

It is an arithmetic number, because the mean of its divisors is an integer number (43186066).

Almost surely, 2^86372131 is an apocalyptic number.

86372131 is a deficient number, since it is larger than the sum of its proper divisors (1).

86372131 is an equidigital number, since it uses as much as digits as its factorization.

86372131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 86372131 is about 9293.6607964784. The cubic root of 86372131 is about 442.0362421911.

Adding to 86372131 its reverse (13127368), we get a palindrome (99499499).

The spelling of 86372131 in words is "eighty-six million, three hundred seventy-two thousand, one hundred thirty-one".