245102323997 has 2 divisors, whose sum is σ = 245102323998. Its totient is φ = 245102323996.

The previous prime is 245102323987. The next prime is 245102324057. The reversal of 245102323997 is 799323201542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228387454201 + 16714869796 = 477899^2 + 129286^2 .

It is a cyclic number.

It is not a de Polignac number, because 245102323997 - 2¹⁴ = 245102307613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245102323987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122551161998 + 122551161999.

It is an arithmetic number, because the mean of its divisors is an integer number (122551161999).

Almost surely, 2^245102323997 is an apocalyptic number.

It is an amenable number.

245102323997 is a deficient number, since it is larger than the sum of its proper divisors (1).

245102323997 is an equidigital number, since it uses as much as digits as its factorization.

245102323997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 245102323997 in words is "two hundred forty-five billion, one hundred two million, three hundred twenty-three thousand, nine hundred ninety-seven".