245040310235129 has 2 divisors, whose sum is σ = 245040310235130. Its totient is φ = 245040310235128.

The previous prime is 245040310235107. The next prime is 245040310235173. The reversal of 245040310235129 is 921532013040542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239327923431529 + 5712386803600 = 15470227^2 + 2390060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245040310235129 is a prime.

It is not a weakly prime, because it can be changed into another prime (245040310235429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122520155117564 + 122520155117565.

It is an arithmetic number, because the mean of its divisors is an integer number (122520155117565).

Almost surely, 2^{245040310235129} is an apocalyptic number.

It is an amenable number.

245040310235129 is a deficient number, since it is larger than the sum of its proper divisors (1).

245040310235129 is an equidigital number, since it uses as much as digits as its factorization.

245040310235129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 245040310235129 in words is "two hundred forty-five trillion, forty billion, three hundred ten million, two hundred thirty-five thousand, one hundred twenty-nine".