86195143 has 2 divisors, whose sum is σ = 86195144. Its totient is φ = 86195142.

The previous prime is 86195113. The next prime is 86195171. The reversal of 86195143 is 34159168.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86195143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86195113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43097571 + 43097572.

It is an arithmetic number, because the mean of its divisors is an integer number (43097572).

Almost surely, 2^86195143 is an apocalyptic number.

86195143 is a deficient number, since it is larger than the sum of its proper divisors (1).

86195143 is an equidigital number, since it uses as much as digits as its factorization.

86195143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The square root of 86195143 is about 9284.1339391459. The cubic root of 86195143 is about 441.7341053463.

The spelling of 86195143 in words is "eighty-six million, one hundred ninety-five thousand, one hundred forty-three".