971320189 has 24 divisors (see below), whose sum is σ = 1185235200. Its totient is φ = 792753696.

The previous prime is 971320151. The next prime is 971320277. The reversal of 971320189 is 981023179.

It is not a de Polignac number, because 971320189 - 2¹³ = 971311997 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 (971350189) 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 23 ways as a sum of consecutive naturals, for example, 79512 + ... + 90910.

It is an arithmetic number, because the mean of its divisors is an integer number (49384800).

Almost surely, 2^971320189 is an apocalyptic number.

It is an amenable number.

971320189 is a deficient number, since it is larger than the sum of its proper divisors (213915011).

971320189 is a wasteful number, since it uses less digits than its factorization.

971320189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11497 (or 11490 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 971320189 is about 31166.0101552958. The cubic root of 971320189 is about 990.3471859878.

The spelling of 971320189 in words is "nine hundred seventy-one million, three hundred twenty thousand, one hundred eighty-nine".