1398113 has 2 divisors, whose sum is σ = 1398114. Its totient is φ = 1398112.

The previous prime is 1398107. The next prime is 1398121. The reversal of 1398113 is 3118931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1183744 + 214369 = 1088^2 + 463^2 .

It is an emirp because it is prime and its reverse (3118931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1398113 - 2⁶ = 1398049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1398413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699056 + 699057.

It is an arithmetic number, because the mean of its divisors is an integer number (699057).

2^1398113 is an apocalyptic number.

It is an amenable number.

1398113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398113 is an equidigital number, since it uses as much as digits as its factorization.

1398113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 26.

The square root of 1398113 is about 1182.4182847030. The cubic root of 1398113 is about 111.8186105136.

The spelling of 1398113 in words is "one million, three hundred ninety-eight thousand, one hundred thirteen".