248719 has 2 divisors, whose sum is σ = 248720. Its totient is φ = 248718.

The previous prime is 248707. The next prime is 248723. The reversal of 248719 is 917842.

248719 is nontrivially palindromic in base 4.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248719 is a prime.

It is a super-2 number, since 2×248719² = 123722281922, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124359 + 124360.

It is an arithmetic number, because the mean of its divisors is an integer number (124360).

2²⁴⁸⁷¹⁹ is an apocalyptic number.

248719 is a deficient number, since it is larger than the sum of its proper divisors (1).

248719 is an equidigital number, since it uses as much as digits as its factorization.

248719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 248719 is about 498.7173548213. The cubic root of 248719 is about 62.8882709360. Note that the first 3 decimals are identical.

The spelling of 248719 in words is "two hundred forty-eight thousand, seven hundred nineteen".