2142142205 has 64 divisors (see below), whose sum is σ = 3193344000. Its totient is φ = 1346208768.

The previous prime is 2142142199. The next prime is 2142142259. The reversal of 2142142205 is 5022412412.

It is a cyclic number.

It is not a de Polignac number, because 2142142205 - 2⁶ = 2142142141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4879376 + ... + 4879814.

It is an arithmetic number, because the mean of its divisors is an integer number (49896000).

Almost surely, 2^2142142205 is an apocalyptic number.

It is an amenable number.

2142142205 is a deficient number, since it is larger than the sum of its proper divisors (1051201795).

2142142205 is a wasteful number, since it uses less digits than its factorization.

2142142205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2142142205 is about 46283.2821329689. The cubic root of 2142142205 is about 1289.0885946566.

Adding to 2142142205 its reverse (5022412412), we get a palindrome (7164554617).

The spelling of 2142142205 in words is "two billion, one hundred forty-two million, one hundred forty-two thousand, two hundred five".