133697248417 has 2 divisors, whose sum is σ = 133697248418. Its totient is φ = 133697248416.

The previous prime is 133697248387. The next prime is 133697248423. The reversal of 133697248417 is 714842796331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132013048896 + 1684199521 = 363336^2 + 41039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133697248417 is a prime.

It is not a weakly prime, because it can be changed into another prime (133697248457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66848624208 + 66848624209.

It is an arithmetic number, because the mean of its divisors is an integer number (66848624209).

Almost surely, 2^133697248417 is an apocalyptic number.

It is an amenable number.

133697248417 is a deficient number, since it is larger than the sum of its proper divisors (1).

133697248417 is an equidigital number, since it uses as much as digits as its factorization.

133697248417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 55.

The spelling of 133697248417 in words is "one hundred thirty-three billion, six hundred ninety-seven million, two hundred forty-eight thousand, four hundred seventeen".