971146853 has 4 divisors (see below), whose sum is σ = 991809600. Its totient is φ = 950484108.

The previous prime is 971146849. The next prime is 971146859. The reversal of 971146853 is 358641179.

971146853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 971146853 - 2² = 971146849 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971146859) 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, 10331303 + ... + 10331396.

It is an arithmetic number, because the mean of its divisors is an integer number (247952400).

Almost surely, 2^971146853 is an apocalyptic number.

It is an amenable number.

971146853 is a deficient number, since it is larger than the sum of its proper divisors (20662747).

971146853 is a wasteful number, since it uses less digits than its factorization.

971146853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20662746.

The product of its digits is 181440, while the sum is 44.

The square root of 971146853 is about 31163.2291812001. The cubic root of 971146853 is about 990.2882720018.

The spelling of 971146853 in words is "nine hundred seventy-one million, one hundred forty-six thousand, eight hundred fifty-three".