381235163 has 4 divisors (see below), whose sum is σ = 381298968. Its totient is φ = 381171360.

The previous prime is 381235147. The next prime is 381235181. The reversal of 381235163 is 361532183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 381235163 - 2⁴ = 381235147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381235103) 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 in 3 ways as a sum of consecutive naturals, for example, 21893 + ... + 35238.

It is an arithmetic number, because the mean of its divisors is an integer number (95324742).

Almost surely, 2^381235163 is an apocalyptic number.

381235163 is a deficient number, since it is larger than the sum of its proper divisors (63805).

381235163 is an equidigital number, since it uses as much as digits as its factorization.

381235163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63804.

The product of its digits is 12960, while the sum is 32.

The square root of 381235163 is about 19525.2442494326. The cubic root of 381235163 is about 725.0995744328.

The spelling of 381235163 in words is "three hundred eighty-one million, two hundred thirty-five thousand, one hundred sixty-three".