2105372887 has 2 divisors, whose sum is σ = 2105372888. Its totient is φ = 2105372886.

The previous prime is 2105372809. The next prime is 2105372891. The reversal of 2105372887 is 7882735012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105372887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105372897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052686443 + 1052686444.

It is an arithmetic number, because the mean of its divisors is an integer number (1052686444).

Almost surely, 2^2105372887 is an apocalyptic number.

2105372887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105372887 is an equidigital number, since it uses as much as digits as its factorization.

2105372887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 2105372887 is about 45884.3425037343. The cubic root of 2105372887 is about 1281.6703630182.

The spelling of 2105372887 in words is "two billion, one hundred five million, three hundred seventy-two thousand, eight hundred eighty-seven".