2857045138 has 8 divisors (see below), whose sum is σ = 4286034288. Its totient is φ = 1428367044.

The previous prime is 2857045129. The next prime is 2857045141. The reversal of 2857045138 is 8315407582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2857045094 and 2857045103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53256 + ... + 92467.

It is an arithmetic number, because the mean of its divisors is an integer number (535754286).

Almost surely, 2^2857045138 is an apocalyptic number.

2857045138 is a deficient number, since it is larger than the sum of its proper divisors (1428989150).

2857045138 is a wasteful number, since it uses less digits than its factorization.

2857045138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155528.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 2857045138 is about 53451.3342957872. The cubic root of 2857045138 is about 1418.9672345710.

The spelling of 2857045138 in words is "two billion, eight hundred fifty-seven million, forty-five thousand, one hundred thirty-eight".