381283 has 4 divisors (see below), whose sum is σ = 435760. Its totient is φ = 326808.

The previous prime is 381253. The next prime is 381287. The reversal of 381283 is 382183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 382183 = 53 ⋅7211.

It is a cyclic number.

It is not a de Polignac number, because 381283 - 2¹³ = 373091 is a prime.

It is a Duffinian number.

381283 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (381287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27228 + ... + 27241.

It is an arithmetic number, because the mean of its divisors is an integer number (108940).

2³⁸¹²⁸³ is an apocalyptic number.

381283 is a deficient number, since it is larger than the sum of its proper divisors (54477).

381283 is an equidigital number, since it uses as much as digits as its factorization.

381283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54476.

The product of its digits is 1152, while the sum is 25.

The square root of 381283 is about 617.4811738021. The cubic root of 381283 is about 72.5129901416.

Subtracting 381283 from its reverse (382183), we obtain a square (900 = 30²).

The spelling of 381283 in words is "three hundred eighty-one thousand, two hundred eighty-three".