245311453005109 has 2 divisors, whose sum is σ = 245311453005110. Its totient is φ = 245311453005108.

The previous prime is 245311453005107. The next prime is 245311453005161. The reversal of 245311453005109 is 901500354113542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212495488700625 + 32815964304484 = 14577225^2 + 5728522^2 .

It is a cyclic number.

It is not a de Polignac number, because 245311453005109 - 2¹ = 245311453005107 is a prime.

Together with 245311453005107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245311453005107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122655726502554 + 122655726502555.

It is an arithmetic number, because the mean of its divisors is an integer number (122655726502555).

Almost surely, 2^{245311453005109} is an apocalyptic number.

It is an amenable number.

245311453005109 is a deficient number, since it is larger than the sum of its proper divisors (1).

245311453005109 is an equidigital number, since it uses as much as digits as its factorization.

245311453005109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 245311453005109 in words is "two hundred forty-five trillion, three hundred eleven billion, four hundred fifty-three million, five thousand, one hundred nine".