248815 has 8 divisors (see below), whose sum is σ = 341280. Its totient is φ = 170592.

The previous prime is 248813. The next prime is 248821. The reversal of 248815 is 518842.

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

It is a cyclic number.

It is not a de Polignac number, because 248815 - 2¹ = 248813 is a prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248813) 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, 3520 + ... + 3589.

It is an arithmetic number, because the mean of its divisors is an integer number (42660).

248815 is a Friedman number, since it can be written as (8+4)^5-8*2-1, using all its digits and the basic arithmetic operations.

2²⁴⁸⁸¹⁵ is an apocalyptic number.

248815 is a deficient number, since it is larger than the sum of its proper divisors (92465).

248815 is an equidigital number, since it uses as much as digits as its factorization.

248815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121.

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

The square root of 248815 is about 498.8135924371. The cubic root of 248815 is about 62.8963610530.

The spelling of 248815 in words is "two hundred forty-eight thousand, eight hundred fifteen".