133604803 has 4 divisors (see below), whose sum is σ = 133698208. Its totient is φ = 133511400.

The previous prime is 133604749. The next prime is 133604831. The reversal of 133604803 is 308406331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308406331 = 5939 ⋅51929.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133604803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133604833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44523 + ... + 47428.

It is an arithmetic number, because the mean of its divisors is an integer number (33424552).

Almost surely, 2^133604803 is an apocalyptic number.

133604803 is a deficient number, since it is larger than the sum of its proper divisors (93405).

133604803 is an equidigital number, since it uses as much as digits as its factorization.

133604803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93404.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 133604803 is about 11558.7543879088. The cubic root of 133604803 is about 511.2194361644.

The spelling of 133604803 in words is "one hundred thirty-three million, six hundred four thousand, eight hundred three".