248811 has 8 divisors (see below), whose sum is σ = 334224. Its totient is φ = 164640.

The previous prime is 248797. The next prime is 248813. The reversal of 248811 is 118842.

Added to its reverse (118842) it gives a triangular number (367653 = T₈₅₇).

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

It is not a de Polignac number, because 248811 - 2⁵ = 248779 is a prime.

248811 is a lucky number.

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 248811.

It is not an unprimeable number, because it can be changed into a prime (248813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (41778).

2²⁴⁸⁸¹¹ is an apocalyptic number.

248811 is a deficient number, since it is larger than the sum of its proper divisors (85413).

248811 is a wasteful number, since it uses less digits than its factorization.

248811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621.

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

The square root of 248811 is about 498.8095829071. The cubic root of 248811 is about 62.8960240064.

Adding to 248811 its reverse (118842), we get a triangular number (367653 = T₈₅₇).

The spelling of 248811 in words is "two hundred forty-eight thousand, eight hundred eleven".