133400017 has 2 divisors, whose sum is σ = 133400018. Its totient is φ = 133400016.

The previous prime is 133400011. The next prime is 133400039. The reversal of 133400017 is 710004331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86285521 + 47114496 = 9289^2 + 6864^2 .

It is a cyclic number.

It is not a de Polignac number, because 133400017 - 2³ = 133400009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133399967 and 133400003.

It is not a weakly prime, because it can be changed into another prime (133400011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66700008 + 66700009.

It is an arithmetic number, because the mean of its divisors is an integer number (66700009).

Almost surely, 2^133400017 is an apocalyptic number.

It is an amenable number.

133400017 is a deficient number, since it is larger than the sum of its proper divisors (1).

133400017 is an equidigital number, since it uses as much as digits as its factorization.

133400017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 133400017 is about 11549.8925103223. The cubic root of 133400017 is about 510.9581079394.

Adding to 133400017 its reverse (710004331), we get a palindrome (843404348).

The spelling of 133400017 in words is "one hundred thirty-three million, four hundred thousand, seventeen".