971142843 has 16 divisors (see below), whose sum is σ = 1416278016. Its totient is φ = 587027040.

The previous prime is 971142829. The next prime is 971142853. The reversal of 971142843 is 348241179.

It is not a de Polignac number, because 971142843 - 2¹⁶ = 971077307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (971142853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25780 + ... + 51057.

It is an arithmetic number, because the mean of its divisors is an integer number (88517376).

Almost surely, 2^971142843 is an apocalyptic number.

971142843 is a deficient number, since it is larger than the sum of its proper divisors (445135173).

971142843 is a wasteful number, since it uses less digits than its factorization.

971142843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77234.

The product of its digits is 48384, while the sum is 39.

The square root of 971142843 is about 31163.1648424867. The cubic root of 971142843 is about 990.2869089874.

The spelling of 971142843 in words is "nine hundred seventy-one million, one hundred forty-two thousand, eight hundred forty-three".