133885603 has 4 divisors (see below), whose sum is σ = 133908808. Its totient is φ = 133862400.

The previous prime is 133885601. The next prime is 133885607. The reversal of 133885603 is 306588331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 306588331 = 7 ⋅43798333.

It is a cyclic number.

It is not a de Polignac number, because 133885603 - 2¹ = 133885601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133885601) 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 3 ways as a sum of consecutive naturals, for example, 4528 + ... + 16978.

It is an arithmetic number, because the mean of its divisors is an integer number (33477202).

Almost surely, 2^133885603 is an apocalyptic number.

133885603 is a deficient number, since it is larger than the sum of its proper divisors (23205).

133885603 is a wasteful number, since it uses less digits than its factorization.

133885603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23204.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 133885603 is about 11570.8946499396. The cubic root of 133885603 is about 511.5773323979.

The spelling of 133885603 in words is "one hundred thirty-three million, eight hundred eighty-five thousand, six hundred three".