86561113 has 2 divisors, whose sum is σ = 86561114. Its totient is φ = 86561112.

The previous prime is 86561087. The next prime is 86561147. The reversal of 86561113 is 31116568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61591104 + 24970009 = 7848^2 + 4997^2 .

It is a cyclic number.

It is not a de Polignac number, because 86561113 - 2⁵ = 86561081 is a prime.

It is not a weakly prime, because it can be changed into another prime (86561173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43280556 + 43280557.

It is an arithmetic number, because the mean of its divisors is an integer number (43280557).

Almost surely, 2^86561113 is an apocalyptic number.

It is an amenable number.

86561113 is a deficient number, since it is larger than the sum of its proper divisors (1).

86561113 is an equidigital number, since it uses as much as digits as its factorization.

86561113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 86561113 is about 9303.8224940075. The cubic root of 86561113 is about 442.3583987322.

The spelling of 86561113 in words is "eighty-six million, five hundred sixty-one thousand, one hundred thirteen".