133396378570237 has 2 divisors, whose sum is σ = 133396378570238. Its totient is φ = 133396378570236.

The previous prime is 133396378570201. The next prime is 133396378570307. The reversal of 133396378570237 is 732075873693331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110266569622521 + 23129808947716 = 10500789^2 + 4809346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133396378570237 is a prime.

It is a super-3 number, since 3×133396378570237³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133396378570537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66698189285118 + 66698189285119.

It is an arithmetic number, because the mean of its divisors is an integer number (66698189285119).

Almost surely, 2^{133396378570237} is an apocalyptic number.

It is an amenable number.

133396378570237 is a deficient number, since it is larger than the sum of its proper divisors (1).

133396378570237 is an equidigital number, since it uses as much as digits as its factorization.

133396378570237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360067680, while the sum is 67.

The spelling of 133396378570237 in words is "one hundred thirty-three trillion, three hundred ninety-six billion, three hundred seventy-eight million, five hundred seventy thousand, two hundred thirty-seven".