975168289 has 2 divisors, whose sum is σ = 975168290. Its totient is φ = 975168288.

The previous prime is 975168287. The next prime is 975168301. The reversal of 975168289 is 982861579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755150400 + 220017889 = 27480^2 + 14833^2 .

It is a cyclic number.

It is not a de Polignac number, because 975168289 - 2¹ = 975168287 is a prime.

Together with 975168287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (975168281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487584144 + 487584145.

It is an arithmetic number, because the mean of its divisors is an integer number (487584145).

Almost surely, 2^975168289 is an apocalyptic number.

It is an amenable number.

975168289 is a deficient number, since it is larger than the sum of its proper divisors (1).

975168289 is an equidigital number, since it uses as much as digits as its factorization.

975168289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 55.

The square root of 975168289 is about 31227.6846564070. The cubic root of 975168289 is about 991.6532892514.

The spelling of 975168289 in words is "nine hundred seventy-five million, one hundred sixty-eight thousand, two hundred eighty-nine".