133512365217 has 24 divisors (see below), whose sum is σ = 223624020928. Its totient is φ = 69357071520.

The previous prime is 133512365201. The next prime is 133512365249. The reversal of 133512365217 is 712563215331.

It is not a de Polignac number, because 133512365217 - 2⁴ = 133512365201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133512365257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26269078 + ... + 26274159.

Almost surely, 2^133512365217 is an apocalyptic number.

It is an amenable number.

133512365217 is a deficient number, since it is larger than the sum of its proper divisors (90111655711).

133512365217 is a wasteful number, since it uses less digits than its factorization.

133512365217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52543269 (or 52543258 counting only the distinct ones).

The product of its digits is 113400, while the sum is 39.

The spelling of 133512365217 in words is "one hundred thirty-three billion, five hundred twelve million, three hundred sixty-five thousand, two hundred seventeen".