133099842 has 16 divisors (see below), whose sum is σ = 266578560. Its totient is φ = 44303472.

The previous prime is 133099819. The next prime is 133099843. The reversal of 133099842 is 248990331.

It is a self number, because there is not a number n which added to its sum of digits gives 133099842.

It is not an unprimeable number, because it can be changed into a prime (133099843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11113 + ... + 19740.

It is an arithmetic number, because the mean of its divisors is an integer number (16661160).

Almost surely, 2^133099842 is an apocalyptic number.

133099842 is an abundant number, since it is smaller than the sum of its proper divisors (133478718).

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

133099842 is a wasteful number, since it uses less digits than its factorization.

133099842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31577.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 133099842 is about 11536.8904822747. The cubic root of 133099842 is about 510.5745696667.

The spelling of 133099842 in words is "one hundred thirty-three million, ninety-nine thousand, eight hundred forty-two".