2857145573 has 4 divisors (see below), whose sum is σ = 2886600780. Its totient is φ = 2827690368.

The previous prime is 2857145567. The next prime is 2857145581. The reversal of 2857145573 is 3755417582.

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 1784386564 + 1072759009 = 42242^2 + 32753^2 .

It is a cyclic number.

It is not a de Polignac number, because 2857145573 - 2⁶ = 2857145509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857145563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14727458 + ... + 14727651.

It is an arithmetic number, because the mean of its divisors is an integer number (721650195).

Almost surely, 2^2857145573 is an apocalyptic number.

It is an amenable number.

2857145573 is a deficient number, since it is larger than the sum of its proper divisors (29455207).

2857145573 is an equidigital number, since it uses as much as digits as its factorization.

2857145573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29455206.

The product of its digits is 1176000, while the sum is 47.

The square root of 2857145573 is about 53452.2737869962. The cubic root of 2857145573 is about 1418.9838615751.

The spelling of 2857145573 in words is "two billion, eight hundred fifty-seven million, one hundred forty-five thousand, five hundred seventy-three".