2105806007 has 2 divisors, whose sum is σ = 2105806008. Its totient is φ = 2105806006.

The previous prime is 2105805973. The next prime is 2105806063. The reversal of 2105806007 is 7006085012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105806007 - 2¹⁶ = 2105740471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105806097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052903003 + 1052903004.

It is an arithmetic number, because the mean of its divisors is an integer number (1052903004).

Almost surely, 2^2105806007 is an apocalyptic number.

2105806007 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105806007 is an equidigital number, since it uses as much as digits as its factorization.

2105806007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 2105806007 is about 45889.0619538033. The cubic root of 2105806007 is about 1281.7582459468.

The spelling of 2105806007 in words is "two billion, one hundred five million, eight hundred six thousand, seven".