145211648717 has 2 divisors, whose sum is σ = 145211648718. Its totient is φ = 145211648716.

The previous prime is 145211648663. The next prime is 145211648759. The reversal of 145211648717 is 717846112541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145196054116 + 15594601 = 381046^2 + 3949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145211648717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145211648017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72605824358 + 72605824359.

It is an arithmetic number, because the mean of its divisors is an integer number (72605824359).

Almost surely, 2^145211648717 is an apocalyptic number.

It is an amenable number.

145211648717 is a deficient number, since it is larger than the sum of its proper divisors (1).

145211648717 is an equidigital number, since it uses as much as digits as its factorization.

145211648717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 47.

The spelling of 145211648717 in words is "one hundred forty-five billion, two hundred eleven million, six hundred forty-eight thousand, seven hundred seventeen".