1298315833 has 2 divisors, whose sum is σ = 1298315834. Its totient is φ = 1298315832.

The previous prime is 1298315723. The next prime is 1298315917. The reversal of 1298315833 is 3385138921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 735060544 + 563255289 = 27112^2 + 23733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1298315833 - 2¹⁷ = 1298184761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1298315833.

It is not a weakly prime, because it can be changed into another prime (1298312833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649157916 + 649157917.

It is an arithmetic number, because the mean of its divisors is an integer number (649157917).

Almost surely, 2^1298315833 is an apocalyptic number.

It is an amenable number.

1298315833 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298315833 is an equidigital number, since it uses as much as digits as its factorization.

1298315833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 1298315833 is about 36032.1499913619. The cubic root of 1298315833 is about 1090.9213748034.

The spelling of 1298315833 in words is "one billion, two hundred ninety-eight million, three hundred fifteen thousand, eight hundred thirty-three".