1838115113 has 2 divisors, whose sum is σ = 1838115114. Its totient is φ = 1838115112.

The previous prime is 1838115073. The next prime is 1838115133. The reversal of 1838115113 is 3115118381.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1359249424 + 478865689 = 36868^2 + 21883^2 .

It is a cyclic number.

It is not a de Polignac number, because 1838115113 - 2¹² = 1838111017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1838115113.

It is not a weakly prime, because it can be changed into another prime (1838115133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919057556 + 919057557.

It is an arithmetic number, because the mean of its divisors is an integer number (919057557).

Almost surely, 2^1838115113 is an apocalyptic number.

It is an amenable number.

1838115113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838115113 is an equidigital number, since it uses as much as digits as its factorization.

1838115113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 32.

The square root of 1838115113 is about 42873.2447220875. The cubic root of 1838115113 is about 1224.9665659069.

The spelling of 1838115113 in words is "one billion, eight hundred thirty-eight million, one hundred fifteen thousand, one hundred thirteen".