245242143045 has 64 divisors (see below), whose sum is σ = 441442794240. Its totient is φ = 129160249344.

The previous prime is 245242143037. The next prime is 245242143049. The reversal of 245242143045 is 540341242542.

It is not a de Polignac number, because 245242143045 - 2³ = 245242143037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245242143049) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35146597 + ... + 35153573.

It is an arithmetic number, because the mean of its divisors is an integer number (6897543660).

Almost surely, 2^245242143045 is an apocalyptic number.

It is an amenable number.

245242143045 is a deficient number, since it is larger than the sum of its proper divisors (196200651195).

245242143045 is a wasteful number, since it uses less digits than its factorization.

245242143045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10211 (or 10205 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 245242143045 its reverse (540341242542), we get a palindrome (785583385587).

The spelling of 245242143045 in words is "two hundred forty-five billion, two hundred forty-two million, one hundred forty-three thousand, forty-five".