2105394287 has 8 divisors (see below), whose sum is σ = 2192616000. Its totient is φ = 2019147424.

The previous prime is 2105394283. The next prime is 2105394293. The reversal of 2105394287 is 7824935012.

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

It is a cyclic number.

It is not a de Polignac number, because 2105394287 - 2² = 2105394283 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 (2105394283) 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, 239303 + ... + 247944.

It is an arithmetic number, because the mean of its divisors is an integer number (274077000).

Almost surely, 2^2105394287 is an apocalyptic number.

2105394287 is a deficient number, since it is larger than the sum of its proper divisors (87221713).

2105394287 is a wasteful number, since it uses less digits than its factorization.

2105394287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487425.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 2105394287 is about 45884.5756981581. The cubic root of 2105394287 is about 1281.6747055036.

The spelling of 2105394287 in words is "two billion, one hundred five million, three hundred ninety-four thousand, two hundred eighty-seven".