248261 has 8 divisors (see below), whose sum is σ = 271320. Its totient is φ = 227136.

The previous prime is 248257. The next prime is 248267. The reversal of 248261 is 162842.

It can be written as a sum of positive squares in 4 ways, for example, as 155236 + 93025 = 394^2 + 305^2 .

It is not a de Polignac number, because 248261 - 2² = 248257 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248267) 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, 2141 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (33915).

2²⁴⁸²⁶¹ is an apocalyptic number.

It is an amenable number.

248261 is a deficient number, since it is larger than the sum of its proper divisors (23059).

248261 is an equidigital number, since it uses as much as digits as its factorization.

248261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 126 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 248261 is about 498.2579653152. The cubic root of 248261 is about 62.8496456525.

The spelling of 248261 in words is "two hundred forty-eight thousand, two hundred sixty-one".