2160085391 has 2 divisors, whose sum is σ = 2160085392. Its totient is φ = 2160085390.

The previous prime is 2160085321. The next prime is 2160085397. The reversal of 2160085391 is 1935800612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2160085391 - 2²⁶ = 2092976527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2160085397) 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, 1080042695 + 1080042696.

It is an arithmetic number, because the mean of its divisors is an integer number (1080042696).

Almost surely, 2^2160085391 is an apocalyptic number.

2160085391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2160085391 is an equidigital number, since it uses as much as digits as its factorization.

2160085391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 2160085391 is about 46476.7188063013. The cubic root of 2160085391 is about 1292.6778479921.

The spelling of 2160085391 in words is "two billion, one hundred sixty million, eighty-five thousand, three hundred ninety-one".