133379391017 has 2 divisors, whose sum is σ = 133379391018. Its totient is φ = 133379391016.

The previous prime is 133379390981. The next prime is 133379391071. The reversal of 133379391017 is 710193973331.

Together with next prime (133379391071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126206825536 + 7172565481 = 355256^2 + 84691^2 .

It is an emirp because it is prime and its reverse (710193973331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133379391017 - 2⁶ = 133379390953 is a prime.

It is not a weakly prime, because it can be changed into another prime (133379391097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66689695508 + 66689695509.

It is an arithmetic number, because the mean of its divisors is an integer number (66689695509).

Almost surely, 2^133379391017 is an apocalyptic number.

It is an amenable number.

133379391017 is a deficient number, since it is larger than the sum of its proper divisors (1).

133379391017 is an equidigital number, since it uses as much as digits as its factorization.

133379391017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 321489, while the sum is 47.

The spelling of 133379391017 in words is "one hundred thirty-three billion, three hundred seventy-nine million, three hundred ninety-one thousand, seventeen".