245242124513 has 2 divisors, whose sum is σ = 245242124514. Its totient is φ = 245242124512.

The previous prime is 245242124473. The next prime is 245242124527. The reversal of 245242124513 is 315421242542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244815164944 + 426959569 = 494788^2 + 20663^2 .

It is a cyclic number.

It is not a de Polignac number, because 245242124513 - 2¹⁶ = 245242058977 is a prime.

It is not a weakly prime, because it can be changed into another prime (245242124563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122621062256 + 122621062257.

It is an arithmetic number, because the mean of its divisors is an integer number (122621062257).

Almost surely, 2^245242124513 is an apocalyptic number.

It is an amenable number.

245242124513 is a deficient number, since it is larger than the sum of its proper divisors (1).

245242124513 is an equidigital number, since it uses as much as digits as its factorization.

245242124513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76800, while the sum is 35.

The spelling of 245242124513 in words is "two hundred forty-five billion, two hundred forty-two million, one hundred twenty-four thousand, five hundred thirteen".