2162010391 has 2 divisors, whose sum is σ = 2162010392. Its totient is φ = 2162010390.

The previous prime is 2162010379. The next prime is 2162010443. The reversal of 2162010391 is 1930102612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2162010391 - 2⁵ = 2162010359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2162010341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081005195 + 1081005196.

It is an arithmetic number, because the mean of its divisors is an integer number (1081005196).

Almost surely, 2^2162010391 is an apocalyptic number.

2162010391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162010391 is an equidigital number, since it uses as much as digits as its factorization.

2162010391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 2162010391 is about 46497.4234877590. The cubic root of 2162010391 is about 1293.0617318944.

The spelling of 2162010391 in words is "two billion, one hundred sixty-two million, ten thousand, three hundred ninety-one".