381225863 has 2 divisors, whose sum is σ = 381225864. Its totient is φ = 381225862.

The previous prime is 381225857. The next prime is 381225869. The reversal of 381225863 is 368522183.

It is a balanced prime because it is at equal distance from previous prime (381225857) and next prime (381225869).

It is a cyclic number.

It is not a de Polignac number, because 381225863 - 2⁴ = 381225847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381225869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190612931 + 190612932.

It is an arithmetic number, because the mean of its divisors is an integer number (190612932).

Almost surely, 2^381225863 is an apocalyptic number.

381225863 is a deficient number, since it is larger than the sum of its proper divisors (1).

381225863 is an equidigital number, since it uses as much as digits as its factorization.

381225863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 381225863 is about 19525.0060947494. The cubic root of 381225863 is about 725.0936782638.

The spelling of 381225863 in words is "three hundred eighty-one million, two hundred twenty-five thousand, eight hundred sixty-three".