245044241 has 4 divisors (see below), whose sum is σ = 263893812. Its totient is φ = 226194672.

The previous prime is 245044237. The next prime is 245044253. The reversal of 245044241 is 142440542.

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 52417600 + 192626641 = 7240^2 + 13879^2 .

It is a cyclic number.

It is not a de Polignac number, because 245044241 - 2² = 245044237 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 245044241.

It is not an unprimeable number, because it can be changed into a prime (245044211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9424766 + ... + 9424791.

It is an arithmetic number, because the mean of its divisors is an integer number (65973453).

Almost surely, 2^245044241 is an apocalyptic number.

It is an amenable number.

245044241 is a deficient number, since it is larger than the sum of its proper divisors (18849571).

245044241 is a wasteful number, since it uses less digits than its factorization.

245044241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18849570.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 245044241 is about 15653.8890056114. The cubic root of 245044241 is about 625.7701362877.

Adding to 245044241 its reverse (142440542), we get a palindrome (387484783).

The spelling of 245044241 in words is "two hundred forty-five million, forty-four thousand, two hundred forty-one".