86183561 has 2 divisors, whose sum is σ = 86183562. Its totient is φ = 86183560.

The previous prime is 86183551. The next prime is 86183569. The reversal of 86183561 is 16538168.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66113161 + 20070400 = 8131^2 + 4480^2 .

It is a cyclic number.

It is not a de Polignac number, because 86183561 - 2⁶ = 86183497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (86183569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43091780 + 43091781.

It is an arithmetic number, because the mean of its divisors is an integer number (43091781).

Almost surely, 2^86183561 is an apocalyptic number.

It is an amenable number.

86183561 is a deficient number, since it is larger than the sum of its proper divisors (1).

86183561 is an equidigital number, since it uses as much as digits as its factorization.

86183561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 86183561 is about 9283.5101658801. The cubic root of 86183561 is about 441.7143192602.

The spelling of 86183561 in words is "eighty-six million, one hundred eighty-three thousand, five hundred sixty-one".