2872143245 has 4 divisors (see below), whose sum is σ = 3446571900. Its totient is φ = 2297714592.

The previous prime is 2872143229. The next prime is 2872143269. The reversal of 2872143245 is 5423412782.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 325225156 + 2546918089 = 18034^2 + 50467^2 .

It is a cyclic number.

It is not a de Polignac number, because 2872143245 - 2⁴ = 2872143229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2872143199 and 2872143208.

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 3 ways as a sum of consecutive naturals, for example, 287214320 + ... + 287214329.

It is an arithmetic number, because the mean of its divisors is an integer number (861642975).

Almost surely, 2^2872143245 is an apocalyptic number.

It is an amenable number.

2872143245 is a deficient number, since it is larger than the sum of its proper divisors (574428655).

2872143245 is an equidigital number, since it uses as much as digits as its factorization.

2872143245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574428654.

The product of its digits is 107520, while the sum is 38.

The square root of 2872143245 is about 53592.3804752131. The cubic root of 2872143245 is about 1421.4623639205.

The spelling of 2872143245 in words is "two billion, eight hundred seventy-two million, one hundred forty-three thousand, two hundred forty-five".