2105039999 has 8 divisors (see below), whose sum is σ = 2167563552. Its totient is φ = 2043048960.

The previous prime is 2105039987. The next prime is 2105040013. The reversal of 2105039999 is 9999305012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2105039999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105039929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125099 + ... + 140924.

It is an arithmetic number, because the mean of its divisors is an integer number (270945444).

Almost surely, 2^2105039999 is an apocalyptic number.

2105039999 is a deficient number, since it is larger than the sum of its proper divisors (62523553).

2105039999 is a wasteful number, since it uses less digits than its factorization.

2105039999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266257.

The product of its (nonzero) digits is 196830, while the sum is 47.

The square root of 2105039999 is about 45880.7148919892. The cubic root of 2105039999 is about 1281.6028096369.

The spelling of 2105039999 in words is "two billion, one hundred five million, thirty-nine thousand, nine hundred ninety-nine".