248289 has 4 divisors (see below), whose sum is σ = 331056. Its totient is φ = 165524.

The previous prime is 248267. The next prime is 248291. The reversal of 248289 is 982842.

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 248289 - 2⁵ = 248257 is a prime.

It is an Ulam number.

It is a D-number.

It is a Curzon number.

248289 is a lucky number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (248299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41379 + ... + 41384.

It is an arithmetic number, because the mean of its divisors is an integer number (82764).

2²⁴⁸²⁸⁹ is an apocalyptic number.

It is an amenable number.

248289 is a deficient number, since it is larger than the sum of its proper divisors (82767).

248289 is an equidigital number, since it uses as much as digits as its factorization.

248289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82766.

The product of its digits is 9216, while the sum is 33.

The square root of 248289 is about 498.2860624180. The cubic root of 248289 is about 62.8520083862.

The spelling of 248289 in words is "two hundred forty-eight thousand, two hundred eighty-nine".