380116813 has 2 divisors, whose sum is σ = 380116814. Its totient is φ = 380116812.

The previous prime is 380116801. The next prime is 380116817. The reversal of 380116813 is 318611083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225810729 + 154306084 = 15027^2 + 12422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380116813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380116817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190058406 + 190058407.

It is an arithmetic number, because the mean of its divisors is an integer number (190058407).

Almost surely, 2^380116813 is an apocalyptic number.

It is an amenable number.

380116813 is a deficient number, since it is larger than the sum of its proper divisors (1).

380116813 is an equidigital number, since it uses as much as digits as its factorization.

380116813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 380116813 is about 19496.5846496252. The cubic root of 380116813 is about 724.3898555855.

Adding to 380116813 its reverse (318611083), we get a palindrome (698727896).

The spelling of 380116813 in words is "three hundred eighty million, one hundred sixteen thousand, eight hundred thirteen".