133121233460497 has 2 divisors, whose sum is σ = 133121233460498. Its totient is φ = 133121233460496.

The previous prime is 133121233460443. The next prime is 133121233460519. The reversal of 133121233460497 is 794064332121331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115351981961616 + 17769251498881 = 10740204^2 + 4215359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133121233460497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133121233460497.

It is not a weakly prime, because it can be changed into another prime (133121233460407) 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, 66560616730248 + 66560616730249.

It is an arithmetic number, because the mean of its divisors is an integer number (66560616730249).

Almost surely, 2^{133121233460497} is an apocalyptic number.

It is an amenable number.

133121233460497 is a deficient number, since it is larger than the sum of its proper divisors (1).

133121233460497 is an equidigital number, since it uses as much as digits as its factorization.

133121233460497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The spelling of 133121233460497 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, two hundred thirty-three million, four hundred sixty thousand, four hundred ninety-seven".