381055 has 8 divisors (see below), whose sum is σ = 484272. Its totient is φ = 286848.

The previous prime is 381047. The next prime is 381061. The reversal of 381055 is 550183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381055 - 2³ = 381047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2157 + ... + 2326.

It is an arithmetic number, because the mean of its divisors is an integer number (60534).

2³⁸¹⁰⁵⁵ is an apocalyptic number.

381055 is a deficient number, since it is larger than the sum of its proper divisors (103217).

381055 is a wasteful number, since it uses less digits than its factorization.

381055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 381055 is about 617.2965251806. The cubic root of 381055 is about 72.4985334622.

The spelling of 381055 in words is "three hundred eighty-one thousand, fifty-five".