133330842 has 12 divisors (see below), whose sum is σ = 288883530. Its totient is φ = 44443608.

The previous prime is 133330819. The next prime is 133330843. The reversal of 133330842 is 248033331.

133330842 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 only one way, i.e., 133194681 + 136161 = 11541^2 + 369^2 .

It is a super-2 number, since 2×133330842² = 35554226856857928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133330843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3703617 + ... + 3703652.

Almost surely, 2^133330842 is an apocalyptic number.

133330842 is an abundant number, since it is smaller than the sum of its proper divisors (155552688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133330842 is a wasteful number, since it uses less digits than its factorization.

133330842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407277 (or 7407274 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 133330842 is about 11546.8975053908. The cubic root of 133330842 is about 510.8697730222.

The spelling of 133330842 in words is "one hundred thirty-three million, three hundred thirty thousand, eight hundred forty-two".