1298442113 has 2 divisors, whose sum is σ = 1298442114. Its totient is φ = 1298442112.

The previous prime is 1298442109. The next prime is 1298442139. The reversal of 1298442113 is 3112448921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1273561969 + 24880144 = 35687^2 + 4988^2 .

It is an emirp because it is prime and its reverse (3112448921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1298442113 - 2² = 1298442109 is a prime.

It is not a weakly prime, because it can be changed into another prime (1298444113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649221056 + 649221057.

It is an arithmetic number, because the mean of its divisors is an integer number (649221057).

Almost surely, 2^1298442113 is an apocalyptic number.

It is an amenable number.

1298442113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298442113 is an equidigital number, since it uses as much as digits as its factorization.

1298442113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 1298442113 is about 36033.9022727209. The cubic root of 1298442113 is about 1090.9567429528.

The spelling of 1298442113 in words is "one billion, two hundred ninety-eight million, four hundred forty-two thousand, one hundred thirteen".