86158229 has 2 divisors, whose sum is σ = 86158230. Its totient is φ = 86158228.

The previous prime is 86158211. The next prime is 86158243. The reversal of 86158229 is 92285168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83302129 + 2856100 = 9127^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 86158229 - 2¹⁶ = 86092693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86178229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43079114 + 43079115.

It is an arithmetic number, because the mean of its divisors is an integer number (43079115).

Almost surely, 2^86158229 is an apocalyptic number.

It is an amenable number.

86158229 is a deficient number, since it is larger than the sum of its proper divisors (1).

86158229 is an equidigital number, since it uses as much as digits as its factorization.

86158229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 41.

The square root of 86158229 is about 9282.1457109873. The cubic root of 86158229 is about 441.6710372100.

The spelling of 86158229 in words is "eighty-six million, one hundred fifty-eight thousand, two hundred twenty-nine".