857299159 has 2 divisors, whose sum is σ = 857299160. Its totient is φ = 857299158.

The previous prime is 857299151. The next prime is 857299207. The reversal of 857299159 is 951992758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 857299159 - 2³ = 857299151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (857299151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428649579 + 428649580.

It is an arithmetic number, because the mean of its divisors is an integer number (428649580).

Almost surely, 2^857299159 is an apocalyptic number.

857299159 is a deficient number, since it is larger than the sum of its proper divisors (1).

857299159 is an equidigital number, since it uses as much as digits as its factorization.

857299159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 55.

The square root of 857299159 is about 29279.6714291674. The cubic root of 857299159 is about 949.9719877243.

The spelling of 857299159 in words is "eight hundred fifty-seven million, two hundred ninety-nine thousand, one hundred fifty-nine".