133312842 has 24 divisors (see below), whose sum is σ = 311063844. Its totient is φ = 41019264.

The previous prime is 133312831. The next prime is 133312847. The reversal of 133312842 is 248213331.

It can be written as a sum of positive squares in 2 ways, for example, as 131125401 + 2187441 = 11451^2 + 1479^2 .

It is not an unprimeable number, because it can be changed into a prime (133312847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284623 + ... + 285090.

Almost surely, 2^133312842 is an apocalyptic number.

133312842 is an abundant number, since it is smaller than the sum of its proper divisors (177751002).

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

133312842 is a wasteful number, since it uses less digits than its factorization.

133312842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569734 (or 569731 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 133312842 is about 11546.1180489375. The cubic root of 133312842 is about 510.8467824182.

The spelling of 133312842 in words is "one hundred thirty-three million, three hundred twelve thousand, eight hundred forty-two".