381383183 has 2 divisors, whose sum is σ = 381383184. Its totient is φ = 381383182.

The previous prime is 381383179. The next prime is 381383201.

It is a happy number.

381383183 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 381383183 - 2² = 381383179 is a prime.

It is a super-2 number, since 2×381383183² = 290906264550422978, which contains 22 as substring.

It is equal to p_20395568 and since 381383183 and 20395568 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 (381383113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190691591 + 190691592.

It is an arithmetic number, because the mean of its divisors is an integer number (190691592).

Almost surely, 2^381383183 is an apocalyptic number.

381383183 is a deficient number, since it is larger than the sum of its proper divisors (1).

381383183 is an equidigital number, since it uses as much as digits as its factorization.

381383183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 381383183 is about 19529.0343591279. The cubic root of 381383183 is about 725.1934057140.

The spelling of 381383183 in words is "three hundred eighty-one million, three hundred eighty-three thousand, one hundred eighty-three".