133033412 has 12 divisors (see below), whose sum is σ = 233675820. Its totient is φ = 66268896.

The previous prime is 133033379. The next prime is 133033423. The reversal of 133033412 is 214330331.

133033412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8844676 + 124188736 = 2974^2 + 11144^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60743 + ... + 62894.

It is an arithmetic number, because the mean of its divisors is an integer number (19472985).

Almost surely, 2^133033412 is an apocalyptic number.

It is an amenable number.

133033412 is a deficient number, since it is larger than the sum of its proper divisors (100642408).

133033412 is a wasteful number, since it uses less digits than its factorization.

133033412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123910 (or 123908 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 133033412 is about 11534.0110976191. The cubic root of 133033412 is about 510.4896131097.

Adding to 133033412 its reverse (214330331), we get a palindrome (347363743).

The spelling of 133033412 in words is "one hundred thirty-three million, thirty-three thousand, four hundred twelve".