281379 has 8 divisors (see below), whose sum is σ = 428800. Its totient is φ = 160776.

The previous prime is 281363. The next prime is 281381. The reversal of 281379 is 973182.

It is a happy number.

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

It is not a de Polignac number, because 281379 - 2⁴ = 281363 is a prime.

It is a Duffinian number.

281379 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281379.

It is not an unprimeable number, because it can be changed into a prime (281339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6679 + ... + 6720.

It is an arithmetic number, because the mean of its divisors is an integer number (53600).

2²⁸¹³⁷⁹ is an apocalyptic number.

281379 is a deficient number, since it is larger than the sum of its proper divisors (147421).

281379 is a wasteful number, since it uses less digits than its factorization.

281379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13409.

The product of its digits is 3024, while the sum is 30.

The square root of 281379 is about 530.4516943134. The cubic root of 281379 is about 65.5285503801.

The spelling of 281379 in words is "two hundred eighty-one thousand, three hundred seventy-nine".