133533213452 has 24 divisors (see below), whose sum is σ = 234949128960. Its totient is φ = 66405018240.

The previous prime is 133533213413. The next prime is 133533213461. The reversal of 133533213452 is 254312335331.

It is a super-2 number, since 2×133533213452² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5434298 + ... + 5458814.

It is an arithmetic number, because the mean of its divisors is an integer number (9789547040).

Almost surely, 2^133533213452 is an apocalyptic number.

It is an amenable number.

133533213452 is a deficient number, since it is larger than the sum of its proper divisors (101415915508).

133533213452 is a wasteful number, since it uses less digits than its factorization.

133533213452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31841 (or 31839 counting only the distinct ones).

The product of its digits is 97200, while the sum is 35.

Adding to 133533213452 its reverse (254312335331), we get a palindrome (387845548783).

The spelling of 133533213452 in words is "one hundred thirty-three billion, five hundred thirty-three million, two hundred thirteen thousand, four hundred fifty-two".