1299998353 has 2 divisors, whose sum is σ = 1299998354. Its totient is φ = 1299998352.

The previous prime is 1299998327. The next prime is 1299998383. The reversal of 1299998353 is 3538999921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1270708609 + 29289744 = 35647^2 + 5412^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299998353 - 2²⁵ = 1266443921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1299998303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649999176 + 649999177.

It is an arithmetic number, because the mean of its divisors is an integer number (649999177).

Almost surely, 2^1299998353 is an apocalyptic number.

It is an amenable number.

1299998353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299998353 is an equidigital number, since it uses as much as digits as its factorization.

1299998353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4723920, while the sum is 58.

The square root of 1299998353 is about 36055.4899148521. The cubic root of 1299998353 is about 1091.3924221573.

The spelling of 1299998353 in words is "one billion, two hundred ninety-nine million, nine hundred ninety-eight thousand, three hundred fifty-three".