245442432241 has 4 divisors (see below), whose sum is σ = 247972766692. Its totient is φ = 242912097792.

The previous prime is 245442432233. The next prime is 245442432247. The reversal of 245442432241 is 142234244542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81170289216 + 164272143025 = 284904^2 + 405305^2 .

It is a cyclic number.

It is not a de Polignac number, because 245442432241 - 2³ = 245442432233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245442432241.

It is not an unprimeable number, because it can be changed into a prime (245442432247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265167080 + ... + 1265167273.

It is an arithmetic number, because the mean of its divisors is an integer number (61993191673).

Almost surely, 2^245442432241 is an apocalyptic number.

It is an amenable number.

245442432241 is a deficient number, since it is larger than the sum of its proper divisors (2530334451).

245442432241 is an equidigital number, since it uses as much as digits as its factorization.

245442432241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530334450.

The product of its digits is 245760, while the sum is 37.

Adding to 245442432241 its reverse (142234244542), we get a palindrome (387676676783).

The spelling of 245442432241 in words is "two hundred forty-five billion, four hundred forty-two million, four hundred thirty-two thousand, two hundred forty-one".