381267 has 14 divisors (see below), whose sum is σ = 572732. Its totient is φ = 253692.

The previous prime is 381253. The next prime is 381287. The reversal of 381267 is 762183.

It is not a de Polignac number, because 381267 - 2⁸ = 381011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

381267 is a lucky number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 381267.

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 13 ways as a sum of consecutive naturals, for example, 468 + ... + 990.

2³⁸¹²⁶⁷ is an apocalyptic number.

381267 is a deficient number, since it is larger than the sum of its proper divisors (191465).

381267 is an frugal number, since it uses more digits than its factorization.

381267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 526 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 381267 is about 617.4682178056. The cubic root of 381267 is about 72.5119758259.

The spelling of 381267 in words is "three hundred eighty-one thousand, two hundred sixty-seven".