2105054287 has 16 divisors (see below), whose sum is σ = 2505388032. Its totient is φ = 1730655360.

The previous prime is 2105054261. The next prime is 2105054297. The reversal of 2105054287 is 7824505012.

It is a happy number.

It is not a de Polignac number, because 2105054287 - 2¹⁵ = 2105021519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105054227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18403 + ... + 67444.

It is an arithmetic number, because the mean of its divisors is an integer number (156586752).

Almost surely, 2^2105054287 is an apocalyptic number.

2105054287 is a deficient number, since it is larger than the sum of its proper divisors (400333745).

2105054287 is a wasteful number, since it uses less digits than its factorization.

2105054287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85998.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 2105054287 is about 45880.8705998480. The cubic root of 2105054287 is about 1281.6057092650.

Adding to 2105054287 its reverse (7824505012), we get a palindrome (9929559299).

The spelling of 2105054287 in words is "two billion, one hundred five million, fifty-four thousand, two hundred eighty-seven".