381361063 has 2 divisors, whose sum is σ = 381361064. Its totient is φ = 381361062.

The previous prime is 381360971. The next prime is 381361069. The reversal of 381361063 is 360163183.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381361063 is a prime.

It is equal to p_20394454 and since 381361063 and 20394454 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381361069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190680531 + 190680532.

It is an arithmetic number, because the mean of its divisors is an integer number (190680532).

Almost surely, 2^381361063 is an apocalyptic number.

381361063 is a deficient number, since it is larger than the sum of its proper divisors (1).

381361063 is an equidigital number, since it uses as much as digits as its factorization.

381361063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 381361063 is about 19528.4680146703. The cubic root of 381361063 is about 725.1793851794.

The spelling of 381361063 in words is "three hundred eighty-one million, three hundred sixty-one thousand, sixty-three".