857114539 has 4 divisors (see below), whose sum is σ = 858682024. Its totient is φ = 855547056.

The previous prime is 857114537. The next prime is 857114561. The reversal of 857114539 is 935411758.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935411758 = 2 ⋅467705879.

It is a cyclic number.

It is not a de Polignac number, because 857114539 - 2¹ = 857114537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 857114495 and 857114504.

It is not an unprimeable number, because it can be changed into a prime (857114537) 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, 782922 + ... + 784015.

It is an arithmetic number, because the mean of its divisors is an integer number (214670506).

Almost surely, 2^857114539 is an apocalyptic number.

857114539 is a deficient number, since it is larger than the sum of its proper divisors (1567485).

857114539 is a wasteful number, since it uses less digits than its factorization.

857114539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567484.

The product of its digits is 151200, while the sum is 43.

The square root of 857114539 is about 29276.5185601021. The cubic root of 857114539 is about 949.9037904415.

The spelling of 857114539 in words is "eight hundred fifty-seven million, one hundred fourteen thousand, five hundred thirty-nine".