86134819 has 2 divisors, whose sum is σ = 86134820. Its totient is φ = 86134818.

The previous prime is 86134799. The next prime is 86134831. The reversal of 86134819 is 91843168.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86134819 - 2¹¹ = 86132771 is a prime.

It is a super-2 number, since 2×86134819² = 14838414088325522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86134849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43067409 + 43067410.

It is an arithmetic number, because the mean of its divisors is an integer number (43067410).

Almost surely, 2^86134819 is an apocalyptic number.

86134819 is a deficient number, since it is larger than the sum of its proper divisors (1).

86134819 is an equidigital number, since it uses as much as digits as its factorization.

86134819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 86134819 is about 9280.8846022349. The cubic root of 86134819 is about 441.6310315302.

The spelling of 86134819 in words is "eighty-six million, one hundred thirty-four thousand, eight hundred nineteen".