381333713 has 2 divisors, whose sum is σ = 381333714. Its totient is φ = 381333712.

The previous prime is 381333691. The next prime is 381333737. The reversal of 381333713 is 317333183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332989504 + 48344209 = 18248^2 + 6953^2 .

It is an emirp because it is prime and its reverse (317333183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381333713 - 2¹⁰ = 381332689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381333713.

It is not a weakly prime, because it can be changed into another prime (381333793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190666856 + 190666857.

It is an arithmetic number, because the mean of its divisors is an integer number (190666857).

Almost surely, 2^381333713 is an apocalyptic number.

It is an amenable number.

381333713 is a deficient number, since it is larger than the sum of its proper divisors (1).

381333713 is an equidigital number, since it uses as much as digits as its factorization.

381333713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 32.

The square root of 381333713 is about 19527.7677423714. The cubic root of 381333713 is about 725.1620489136.

Adding to 381333713 its reverse (317333183), we get a palindrome (698666896).

The spelling of 381333713 in words is "three hundred eighty-one million, three hundred thirty-three thousand, seven hundred thirteen".