2142110445 has 32 divisors (see below), whose sum is σ = 3610569600. Its totient is φ = 1081488384.

The previous prime is 2142110441. The next prime is 2142110459. The reversal of 2142110445 is 5440112412.

It is not a de Polignac number, because 2142110445 - 2² = 2142110441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142110441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 543241 + ... + 547169.

It is an arithmetic number, because the mean of its divisors is an integer number (112830300).

Almost surely, 2^2142110445 is an apocalyptic number.

It is an amenable number.

2142110445 is a deficient number, since it is larger than the sum of its proper divisors (1468459155).

2142110445 is a wasteful number, since it uses less digits than its factorization.

2142110445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5869.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 2142110445 is about 46282.9390272485. The cubic root of 2142110445 is about 1289.0822238290.

Adding to 2142110445 its reverse (5440112412), we get a palindrome (7582222857).

The spelling of 2142110445 in words is "two billion, one hundred forty-two million, one hundred ten thousand, four hundred forty-five".