248549 has 4 divisors (see below), whose sum is σ = 284064. Its totient is φ = 213036.

The previous prime is 248543. The next prime is 248569. The reversal of 248549 is 945842.

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, and also an emirpimes, since its reverse is a distinct semiprime: 945842 = 2 ⋅472921.

It is a cyclic number.

It is not a de Polignac number, because 248549 - 2⁴ = 248533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248543) 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, 17747 + ... + 17760.

It is an arithmetic number, because the mean of its divisors is an integer number (71016).

2²⁴⁸⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

248549 is a deficient number, since it is larger than the sum of its proper divisors (35515).

248549 is an equidigital number, since it uses as much as digits as its factorization.

248549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35514.

The product of its digits is 11520, while the sum is 32.

The square root of 248549 is about 498.5468884669. The cubic root of 248549 is about 62.8739395785.

It can be divided in two parts, 248 and 549, that added together give a palindrome (797).

The spelling of 248549 in words is "two hundred forty-eight thousand, five hundred forty-nine".