248545841 has 4 divisors (see below), whose sum is σ = 248579184. Its totient is φ = 248512500.

The previous prime is 248545799. The next prime is 248545861. The reversal of 248545841 is 148545842.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 248545841 - 2⁶ = 248545777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248545861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206 + ... + 22296.

It is an arithmetic number, because the mean of its divisors is an integer number (62144796).

Almost surely, 2^248545841 is an apocalyptic number.

It is an amenable number.

248545841 is a deficient number, since it is larger than the sum of its proper divisors (33343).

248545841 is a wasteful number, since it uses less digits than its factorization.

248545841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33342.

The product of its digits is 204800, while the sum is 41.

The square root of 248545841 is about 15765.3366916156. The cubic root of 248545841 is about 628.7367320629.

Subtracting from 248545841 its reverse (148545842), we obtain a palindrome (99999999).

The spelling of 248545841 in words is "two hundred forty-eight million, five hundred forty-five thousand, eight hundred forty-one".