857150143 has 4 divisors (see below), whose sum is σ = 865161000. Its totient is φ = 849139288.

The previous prime is 857150137. The next prime is 857150179. The reversal of 857150143 is 341051758.

It is a happy number.

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 857150143 - 2¹⁷ = 857019071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 857150099 and 857150108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857150123) 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, 4005268 + ... + 4005481.

It is an arithmetic number, because the mean of its divisors is an integer number (216290250).

Almost surely, 2^857150143 is an apocalyptic number.

857150143 is a deficient number, since it is larger than the sum of its proper divisors (8010857).

857150143 is a wasteful number, since it uses less digits than its factorization.

857150143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010856.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 857150143 is about 29277.1266178906. The cubic root of 857150143 is about 949.9169430619.

The spelling of 857150143 in words is "eight hundred fifty-seven million, one hundred fifty thousand, one hundred forty-three".