2162105287 has 2 divisors, whose sum is σ = 2162105288. Its totient is φ = 2162105286.

The previous prime is 2162105279. The next prime is 2162105299. The reversal of 2162105287 is 7825012612.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2162105287 - 2³ = 2162105279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2162105207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081052643 + 1081052644.

It is an arithmetic number, because the mean of its divisors is an integer number (1081052644).

Almost surely, 2^2162105287 is an apocalyptic number.

2162105287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162105287 is an equidigital number, since it uses as much as digits as its factorization.

2162105287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 2162105287 is about 46498.4439202002. The cubic root of 2162105287 is about 1293.0806501801.

Adding to 2162105287 its reverse (7825012612), we get a palindrome (9987117899).

The spelling of 2162105287 in words is "two billion, one hundred sixty-two million, one hundred five thousand, two hundred eighty-seven".