298105 has 4 divisors (see below), whose sum is σ = 357732. Its totient is φ = 238480.

The previous prime is 298099. The next prime is 298153. The reversal of 298105 is 501892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183184 + 114921 = 428^2 + 339^2 .

It is not a de Polignac number, because 298105 - 2¹⁵ = 265337 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

298105 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 298105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29806 + ... + 29815.

It is an arithmetic number, because the mean of its divisors is an integer number (89433).

2²⁹⁸¹⁰⁵ is an apocalyptic number.

It is an amenable number.

298105 is a deficient number, since it is larger than the sum of its proper divisors (59627).

298105 is an equidigital number, since it uses as much as digits as its factorization.

298105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59626.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 298105 is about 545.9899266470. The cubic root of 298105 is about 66.8020443516.

Adding to 298105 its reverse (501892), we get a palindrome (799997).

The spelling of 298105 in words is "two hundred ninety-eight thousand, one hundred five".