971130857 has 4 divisors (see below), whose sum is σ = 980746116. Its totient is φ = 961515600.

The previous prime is 971130847. The next prime is 971130871. The reversal of 971130857 is 758031179.

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

It can be written as a sum of positive squares in 2 ways, for example, as 858431401 + 112699456 = 29299^2 + 10616^2 .

It is a cyclic number.

It is not a de Polignac number, because 971130857 - 2²⁸ = 702695401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971130847) 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, 4807478 + ... + 4807679.

It is an arithmetic number, because the mean of its divisors is an integer number (245186529).

Almost surely, 2^971130857 is an apocalyptic number.

It is an amenable number.

971130857 is a deficient number, since it is larger than the sum of its proper divisors (9615259).

971130857 is a wasteful number, since it uses less digits than its factorization.

971130857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9615258.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 971130857 is about 31162.9725315157. The cubic root of 971130857 is about 990.2828348776.

The spelling of 971130857 in words is "nine hundred seventy-one million, one hundred thirty thousand, eight hundred fifty-seven".