857300143 has 4 divisors (see below), whose sum is σ = 979771600. Its totient is φ = 734828688.

The previous prime is 857300131. The next prime is 857300173. The reversal of 857300143 is 341003758.

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

It is a cyclic number.

It is not a de Polignac number, because 857300143 - 2²⁹ = 320429231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857300113) by changing a digit.

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, 61235718 + ... + 61235731.

It is an arithmetic number, because the mean of its divisors is an integer number (244942900).

Almost surely, 2^857300143 is an apocalyptic number.

857300143 is a deficient number, since it is larger than the sum of its proper divisors (122471457).

857300143 is a wasteful number, since it uses less digits than its factorization.

857300143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122471456.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 857300143 is about 29279.6882326298. The cubic root of 857300143 is about 949.9723511805.

The spelling of 857300143 in words is "eight hundred fifty-seven million, three hundred thousand, one hundred forty-three".