133017735281 has 2 divisors, whose sum is σ = 133017735282. Its totient is φ = 133017735280.

The previous prime is 133017735251. The next prime is 133017735293. The reversal of 133017735281 is 182537710331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79467610000 + 53550125281 = 281900^2 + 231409^2 .

It is an emirp because it is prime and its reverse (182537710331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133017735281 - 2¹⁰ = 133017734257 is a prime.

It is a super-2 number, since 2×133017735281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133017735241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66508867640 + 66508867641.

It is an arithmetic number, because the mean of its divisors is an integer number (66508867641).

Almost surely, 2^133017735281 is an apocalyptic number.

It is an amenable number.

133017735281 is a deficient number, since it is larger than the sum of its proper divisors (1).

133017735281 is an equidigital number, since it uses as much as digits as its factorization.

133017735281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 133017735281 in words is "one hundred thirty-three billion, seventeen million, seven hundred thirty-five thousand, two hundred eighty-one".