381063919 has 2 divisors, whose sum is σ = 381063920. Its totient is φ = 381063918.

The previous prime is 381063899. The next prime is 381063929. The reversal of 381063919 is 919360183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381063919 - 2¹¹ = 381061871 is a prime.

It is a super-2 number, since 2×381063919² = 290419420727277122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381063929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190531959 + 190531960.

It is an arithmetic number, because the mean of its divisors is an integer number (190531960).

Almost surely, 2^381063919 is an apocalyptic number.

381063919 is a deficient number, since it is larger than the sum of its proper divisors (1).

381063919 is an equidigital number, since it uses as much as digits as its factorization.

381063919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 381063919 is about 19520.8585620612. The cubic root of 381063919 is about 724.9909909305.

It can be divided in two parts, 38106 and 3919, that added together give a square (42025 = 205²).

The spelling of 381063919 in words is "three hundred eighty-one million, sixty-three thousand, nine hundred nineteen".