245107031797 has 2 divisors, whose sum is σ = 245107031798. Its totient is φ = 245107031796.

The previous prime is 245107031791. The next prime is 245107031809. The reversal of 245107031797 is 797130701542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125915683716 + 119191348081 = 354846^2 + 345241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245107031797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245107031791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122553515898 + 122553515899.

It is an arithmetic number, because the mean of its divisors is an integer number (122553515899).

Almost surely, 2^245107031797 is an apocalyptic number.

It is an amenable number.

245107031797 is a deficient number, since it is larger than the sum of its proper divisors (1).

245107031797 is an equidigital number, since it uses as much as digits as its factorization.

245107031797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 370440, while the sum is 46.

The spelling of 245107031797 in words is "two hundred forty-five billion, one hundred seven million, thirty-one thousand, seven hundred ninety-seven".