2142805064 has 32 divisors (see below), whose sum is σ = 4159833600. Its totient is φ = 1033724160.

The previous prime is 2142805057. The next prime is 2142805073. The reversal of 2142805064 is 4605082412.

It is a super-2 number, since 2×2142805064² = 9183227084608088192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2142805064.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70757 + ... + 96395.

It is an arithmetic number, because the mean of its divisors is an integer number (129994800).

Almost surely, 2^2142805064 is an apocalyptic number.

It is an amenable number.

2142805064 is a deficient number, since it is larger than the sum of its proper divisors (2017028536).

2142805064 is a wasteful number, since it uses less digits than its factorization.

2142805064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26013 (or 26009 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 2142805064 is about 46290.4424692614. The cubic root of 2142805064 is about 1289.2215450358.

Adding to 2142805064 its reverse (4605082412), we get a palindrome (6747887476).

The spelling of 2142805064 in words is "two billion, one hundred forty-two million, eight hundred five thousand, sixty-four".