248181 has 4 divisors (see below), whose sum is σ = 330912. Its totient is φ = 165452.

The previous prime is 248179. The next prime is 248189. The reversal of 248181 is 181842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 248181 - 2¹ = 248179 is a prime.

It is a super-2 number, since 2×248181² = 123187617522, which contains 22 as substring.

It is a D-number.

It is a nialpdrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41361 + ... + 41366.

It is an arithmetic number, because the mean of its divisors is an integer number (82728).

2²⁴⁸¹⁸¹ is an apocalyptic number.

It is an amenable number.

248181 is a deficient number, since it is larger than the sum of its proper divisors (82731).

248181 is an equidigital number, since it uses as much as digits as its factorization.

248181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82730.

The product of its digits is 512, while the sum is 24.

The square root of 248181 is about 498.1776791467. The cubic root of 248181 is about 62.8428940056.

The spelling of 248181 in words is "two hundred forty-eight thousand, one hundred eighty-one".