133687343417 has 2 divisors, whose sum is σ = 133687343418. Its totient is φ = 133687343416.

The previous prime is 133687343389. The next prime is 133687343423. The reversal of 133687343417 is 714343786331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107970730921 + 25716612496 = 328589^2 + 160364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133687343417 is a prime.

It is not a weakly prime, because it can be changed into another prime (133687343437) 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, 66843671708 + 66843671709.

It is an arithmetic number, because the mean of its divisors is an integer number (66843671709).

Almost surely, 2^133687343417 is an apocalyptic number.

It is an amenable number.

133687343417 is a deficient number, since it is larger than the sum of its proper divisors (1).

133687343417 is an equidigital number, since it uses as much as digits as its factorization.

133687343417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 50.

The spelling of 133687343417 in words is "one hundred thirty-three billion, six hundred eighty-seven million, three hundred forty-three thousand, four hundred seventeen".