381373 has 2 divisors, whose sum is σ = 381374. Its totient is φ = 381372.

The previous prime is 381371. The next prime is 381377. The reversal of 381373 is 373183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 356409 + 24964 = 597^2 + 158^2 .

381373 is a truncatable prime.

It is an emirp because it is prime and its reverse (373183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381373 - 2¹ = 381371 is a prime.

Together with 381371, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (381371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190686 + 190687.

It is an arithmetic number, because the mean of its divisors is an integer number (190687).

2³⁸¹³⁷³ is an apocalyptic number.

It is an amenable number.

381373 is a deficient number, since it is larger than the sum of its proper divisors (1).

381373 is an equidigital number, since it uses as much as digits as its factorization.

381373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 25.

The square root of 381373 is about 617.5540462178. The cubic root of 381373 is about 72.5186951391.

It can be divided in two parts, 38137 and 3, that multiplied together give a palindrome (114411).

The spelling of 381373 in words is "three hundred eighty-one thousand, three hundred seventy-three".