245213052041 has 2 divisors, whose sum is σ = 245213052042. Its totient is φ = 245213052040.

The previous prime is 245213052037. The next prime is 245213052053. The reversal of 245213052041 is 140250312542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243809800441 + 1403251600 = 493771^2 + 37460^2 .

It is a cyclic number.

It is not a de Polignac number, because 245213052041 - 2² = 245213052037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 245213051995 and 245213052013.

It is not a weakly prime, because it can be changed into another prime (245213052001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122606526020 + 122606526021.

It is an arithmetic number, because the mean of its divisors is an integer number (122606526021).

Almost surely, 2^245213052041 is an apocalyptic number.

It is an amenable number.

245213052041 is a deficient number, since it is larger than the sum of its proper divisors (1).

245213052041 is an equidigital number, since it uses as much as digits as its factorization.

245213052041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 245213052041 its reverse (140250312542), we get a palindrome (385463364583).

The spelling of 245213052041 in words is "two hundred forty-five billion, two hundred thirteen million, fifty-two thousand, forty-one".