1097818297 has 2 divisors, whose sum is σ = 1097818298. Its totient is φ = 1097818296.

The previous prime is 1097818291. The next prime is 1097818301. The reversal of 1097818297 is 7928187901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1068701481 + 29116816 = 32691^2 + 5396^2 .

It is an emirp because it is prime and its reverse (7928187901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1097818297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097818291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548909148 + 548909149.

It is an arithmetic number, because the mean of its divisors is an integer number (548909149).

Almost surely, 2^1097818297 is an apocalyptic number.

It is an amenable number.

1097818297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097818297 is an equidigital number, since it uses as much as digits as its factorization.

1097818297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 52.

The square root of 1097818297 is about 33133.3411686778. The cubic root of 1097818297 is about 1031.5972005474.

The spelling of 1097818297 in words is "one billion, ninety-seven million, eight hundred eighteen thousand, two hundred ninety-seven".