381343 has 2 divisors, whose sum is σ = 381344. Its totient is φ = 381342.

The previous prime is 381323. The next prime is 381347. The reversal of 381343 is 343183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381343 - 2¹³ = 373151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190671 + 190672.

It is an arithmetic number, because the mean of its divisors is an integer number (190672).

2³⁸¹³⁴³ is an apocalyptic number.

381343 is a deficient number, since it is larger than the sum of its proper divisors (1).

381343 is an equidigital number, since it uses as much as digits as its factorization.

381343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 381343 is about 617.5297563681. The cubic root of 381343 is about 72.5167935730.

The spelling of 381343 in words is "three hundred eighty-one thousand, three hundred forty-three".