971112089 has 2 divisors, whose sum is σ = 971112090. Its totient is φ = 971112088.

The previous prime is 971112083. The next prime is 971112127. The reversal of 971112089 is 980211179.

It is an a-pointer prime, because the next prime (971112127) can be obtained adding 971112089 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 965158489 + 5953600 = 31067^2 + 2440^2 .

It is a cyclic number.

It is not a de Polignac number, because 971112089 - 2²⁰ = 970063513 is a prime.

It is not a weakly prime, because it can be changed into another prime (971112083) 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 as a sum of consecutive naturals, namely, 485556044 + 485556045.

It is an arithmetic number, because the mean of its divisors is an integer number (485556045).

Almost surely, 2^971112089 is an apocalyptic number.

It is an amenable number.

971112089 is a deficient number, since it is larger than the sum of its proper divisors (1).

971112089 is an equidigital number, since it uses as much as digits as its factorization.

971112089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 971112089 is about 31162.6714034596. The cubic root of 971112089 is about 990.2764554599.

The spelling of 971112089 in words is "nine hundred seventy-one million, one hundred twelve thousand, eighty-nine".