2142105505 has 16 divisors (see below), whose sum is σ = 2756877120. Its totient is φ = 1592854848.

The previous prime is 2142105481. The next prime is 2142105517. The reversal of 2142105505 is 5055012412.

2142105505 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2142105505 - 2¹⁷ = 2141974433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2142105505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207687 + ... + 217756.

It is an arithmetic number, because the mean of its divisors is an integer number (172304820).

Almost surely, 2^2142105505 is an apocalyptic number.

It is an amenable number.

2142105505 is a deficient number, since it is larger than the sum of its proper divisors (614771615).

2142105505 is a wasteful number, since it uses less digits than its factorization.

2142105505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425520.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2142105505 is about 46282.8856598203. The cubic root of 2142105505 is about 1289.0812328948.

Adding to 2142105505 its reverse (5055012412), we get a palindrome (7197117917).

The spelling of 2142105505 in words is "two billion, one hundred forty-two million, one hundred five thousand, five hundred five".