248109 has 8 divisors (see below), whose sum is σ = 333312. Its totient is φ = 164160.

The previous prime is 248099. The next prime is 248117. The reversal of 248109 is 901842.

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

It is not a de Polignac number, because 248109 - 2⁵ = 248077 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248119) 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, 357 + ... + 789.

It is an arithmetic number, because the mean of its divisors is an integer number (41664).

2²⁴⁸¹⁰⁹ is an apocalyptic number.

It is an amenable number.

248109 is a deficient number, since it is larger than the sum of its proper divisors (85203).

248109 is a wasteful number, since it uses less digits than its factorization.

With its successor (248110) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (627).

248109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 248109 is about 498.1054105307. The cubic root of 248109 is about 62.8368162827.

The spelling of 248109 in words is "two hundred forty-eight thousand, one hundred nine".