245441 has 6 divisors (see below), whose sum is σ = 285570. Its totient is φ = 210336.

The previous prime is 245437. The next prime is 245471. The reversal of 245441 is 144542.

It can be written as a sum of positive squares in only one way, i.e., 207025 + 38416 = 455^2 + 196^2 .

It is not a de Polignac number, because 245441 - 2² = 245437 is a prime.

It is a Duffinian number.

245441 is a modest number, since divided by 441 gives 245 as remainder.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 245441.

It is not an unprimeable number, because it can be changed into a prime (245411) 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 5 ways as a sum of consecutive naturals, for example, 2456 + ... + 2553.

It is an arithmetic number, because the mean of its divisors is an integer number (47595).

2²⁴⁵⁴⁴¹ is an apocalyptic number.

It is an amenable number.

245441 is a deficient number, since it is larger than the sum of its proper divisors (40129).

245441 is an equidigital number, since it uses as much as digits as its factorization.

245441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023 (or 5016 counting only the distinct ones).

The product of its digits is 640, while the sum is 20.

The square root of 245441 is about 495.4200238182. The cubic root of 245441 is about 62.6107689014.

Adding to 245441 its reverse (144542), we get a palindrome (389983).

It can be divided in two parts, 245 and 441, that added together give a palindrome (686).

The spelling of 245441 in words is "two hundred forty-five thousand, four hundred forty-one".