2857215243 has 12 divisors (see below), whose sum is σ = 3875298728. Its totient is φ = 1872518400.

The previous prime is 2857215241. The next prime is 2857215247. The reversal of 2857215243 is 3425127582.

It is not a de Polignac number, because 2857215243 - 2¹ = 2857215241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2857215241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126358 + ... + 147243.

Almost surely, 2^2857215243 is an apocalyptic number.

2857215243 is a deficient number, since it is larger than the sum of its proper divisors (1018083485).

2857215243 is an equidigital number, since it uses as much as digits as its factorization.

2857215243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273722 (or 273663 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 2857215243 is about 53452.9254858890. The cubic root of 2857215243 is about 1418.9953952077.

The spelling of 2857215243 in words is "two billion, eight hundred fifty-seven million, two hundred fifteen thousand, two hundred forty-three".