1297286017 has 4 divisors (see below), whose sum is σ = 1306755396. Its totient is φ = 1287816640.

The previous prime is 1297285987. The next prime is 1297286021. The reversal of 1297286017 is 7106827921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 797271696 + 500014321 = 28236^2 + 22361^2 .

It is a cyclic number.

It is not a de Polignac number, because 1297286017 - 2¹¹ = 1297283969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1297286317) 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, 4734484 + ... + 4734757.

It is an arithmetic number, because the mean of its divisors is an integer number (326688849).

Almost surely, 2^1297286017 is an apocalyptic number.

It is an amenable number.

1297286017 is a deficient number, since it is larger than the sum of its proper divisors (9469379).

1297286017 is an equidigital number, since it uses as much as digits as its factorization.

1297286017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9469378.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 1297286017 is about 36017.8569184786. The cubic root of 1297286017 is about 1090.6328611700.

It can be divided in two parts, 12972 and 86017, that added together give a palindrome (98989).

The spelling of 1297286017 in words is "one billion, two hundred ninety-seven million, two hundred eighty-six thousand, seventeen".