245315531207 has 2 divisors, whose sum is σ = 245315531208. Its totient is φ = 245315531206.

The previous prime is 245315531173. The next prime is 245315531257. The reversal of 245315531207 is 702135513542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245315531207 - 2⁶ = 245315531143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245315531257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122657765603 + 122657765604.

It is an arithmetic number, because the mean of its divisors is an integer number (122657765604).

Almost surely, 2^245315531207 is an apocalyptic number.

245315531207 is a deficient number, since it is larger than the sum of its proper divisors (1).

245315531207 is an equidigital number, since it uses as much as digits as its factorization.

245315531207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 245315531207 in words is "two hundred forty-five billion, three hundred fifteen million, five hundred thirty-one thousand, two hundred seven".