381127 has 4 divisors (see below), whose sum is σ = 384256. Its totient is φ = 378000.

The previous prime is 381103. The next prime is 381167. The reversal of 381127 is 721183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 721183 = 19 ⋅37957.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-381127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381098 and 381107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381167) 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, 1374 + ... + 1627.

It is an arithmetic number, because the mean of its divisors is an integer number (96064).

2³⁸¹¹²⁷ is an apocalyptic number.

381127 is a deficient number, since it is larger than the sum of its proper divisors (3129).

381127 is a wasteful number, since it uses less digits than its factorization.

381127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128.

The product of its digits is 336, while the sum is 22.

The square root of 381127 is about 617.3548412380. The cubic root of 381127 is about 72.5030993522.

The spelling of 381127 in words is "three hundred eighty-one thousand, one hundred twenty-seven".