381573743 has 2 divisors, whose sum is σ = 381573744. Its totient is φ = 381573742.

The previous prime is 381573737. The next prime is 381573781. The reversal of 381573743 is 347375183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381573743 - 2¹⁴ = 381557359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381573743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381573733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190786871 + 190786872.

It is an arithmetic number, because the mean of its divisors is an integer number (190786872).

Almost surely, 2^381573743 is an apocalyptic number.

381573743 is a deficient number, since it is larger than the sum of its proper divisors (1).

381573743 is an equidigital number, since it uses as much as digits as its factorization.

381573743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 381573743 is about 19533.9126393050. The cubic root of 381573743 is about 725.3141677644.

The spelling of 381573743 in words is "three hundred eighty-one million, five hundred seventy-three thousand, seven hundred forty-three".