248851 has 2 divisors, whose sum is σ = 248852. Its totient is φ = 248850.

The previous prime is 248839. The next prime is 248861. The reversal of 248851 is 158842.

248851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248851 - 2⁷ = 248723 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (248821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124425 + 124426.

It is an arithmetic number, because the mean of its divisors is an integer number (124426).

2²⁴⁸⁸⁵¹ is an apocalyptic number.

248851 is the 316-th centered pentagonal number.

248851 is a deficient number, since it is larger than the sum of its proper divisors (1).

248851 is an equidigital number, since it uses as much as digits as its factorization.

248851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2560, while the sum is 28.

The square root of 248851 is about 498.8496767564. The cubic root of 248851 is about 62.8993943104.

Subtracting from 248851 its reverse (158842), we obtain a palindrome (90009).

The spelling of 248851 in words is "two hundred forty-eight thousand, eight hundred fifty-one".