133869033 has 24 divisors (see below), whose sum is σ = 206081928. Its totient is φ = 83446272.

The previous prime is 133869013. The next prime is 133869089. The reversal of 133869033 is 330968331.

It can be written as a sum of positive squares in 4 ways, for example, as 2812329 + 131056704 = 1677^2 + 11448^2 .

It is not a de Polignac number, because 133869033 - 2⁹ = 133868521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133869013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21235 + ... + 26807.

It is an arithmetic number, because the mean of its divisors is an integer number (8586747).

Almost surely, 2^133869033 is an apocalyptic number.

It is an amenable number.

133869033 is a deficient number, since it is larger than the sum of its proper divisors (72212895).

133869033 is a wasteful number, since it uses less digits than its factorization.

133869033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5753 (or 5750 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 133869033 is about 11570.1786070916. The cubic root of 133869033 is about 511.5562268522.

The spelling of 133869033 in words is "one hundred thirty-three million, eight hundred sixty-nine thousand, thirty-three".