383081 has 2 divisors, whose sum is σ = 383082. Its totient is φ = 383080.

The previous prime is 383077. The next prime is 383083. The reversal of 383081 is 180383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341056 + 42025 = 584^2 + 205^2 .

It is a cyclic number.

It is not a de Polignac number, because 383081 - 2² = 383077 is a prime.

It is a super-2 number, since 2×383081² = 293502105122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 383083, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (383083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191540 + 191541.

It is an arithmetic number, because the mean of its divisors is an integer number (191541).

2³⁸³⁰⁸¹ is an apocalyptic number.

It is an amenable number.

383081 is a deficient number, since it is larger than the sum of its proper divisors (1).

383081 is an equidigital number, since it uses as much as digits as its factorization.

383081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 383081 is about 618.9353762712. The cubic root of 383081 is about 72.6267935821.

The spelling of 383081 in words is "three hundred eighty-three thousand, eighty-one".