2143310445 has 24 divisors (see below), whose sum is σ = 3933606456. Its totient is φ = 1075857408.

The previous prime is 2143310431. The next prime is 2143310467. The reversal of 2143310445 is 5440133412.

It is a happy number.

2143310445 is a `hidden beast` number, since 214 + 3 + 3 + 1 + 0 + 445 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 30437289 + 2112873156 = 5517^2 + 45966^2 .

It is not a de Polignac number, because 2143310445 - 2¹³ = 2143302253 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 1400092 + ... + 1401621.

It is an arithmetic number, because the mean of its divisors is an integer number (163900269).

Almost surely, 2^2143310445 is an apocalyptic number.

It is an amenable number.

2143310445 is a deficient number, since it is larger than the sum of its proper divisors (1790296011).

2143310445 is a wasteful number, since it uses less digits than its factorization.

2143310445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801741 (or 2801738 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2143310445 is about 46295.9009524601. The cubic root of 2143310445 is about 1289.3228914545.

Adding to 2143310445 its reverse (5440133412), we get a palindrome (7583443857).

It can be divided in two parts, 21433 and 10445, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 2143310445 in words is "two billion, one hundred forty-three million, three hundred ten thousand, four hundred forty-five".