2142134305 has 16 divisors (see below), whose sum is σ = 2588595264. Its totient is φ = 1701725760.

The previous prime is 2142134297. The next prime is 2142134399. The reversal of 2142134305 is 5034312412.

It is not a de Polignac number, because 2142134305 - 2³ = 2142134297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2142134305.

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, 475594 + ... + 480076.

It is an arithmetic number, because the mean of its divisors is an integer number (161787204).

Almost surely, 2^2142134305 is an apocalyptic number.

It is an amenable number.

2142134305 is a deficient number, since it is larger than the sum of its proper divisors (446460959).

2142134305 is a wasteful number, since it uses less digits than its factorization.

2142134305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2142134305 is about 46283.1967888995. The cubic root of 2142134305 is about 1289.0870099793.

Adding to 2142134305 its reverse (5034312412), we get a palindrome (7176446717).

The spelling of 2142134305 in words is "two billion, one hundred forty-two million, one hundred thirty-four thousand, three hundred five".