133334503 has 4 divisors (see below), whose sum is σ = 137635648. Its totient is φ = 129033360.

The previous prime is 133334491. The next prime is 133334543. The reversal of 133334503 is 305433331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133334503 - 2²⁵ = 99780071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133334543) 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, 2150526 + ... + 2150587.

It is an arithmetic number, because the mean of its divisors is an integer number (34408912).

Almost surely, 2^133334503 is an apocalyptic number.

133334503 is a deficient number, since it is larger than the sum of its proper divisors (4301145).

133334503 is an equidigital number, since it uses as much as digits as its factorization.

133334503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301144.

The product of its (nonzero) digits is 4860, while the sum is 25.

The square root of 133334503 is about 11547.0560317338. The cubic root of 133334503 is about 510.8744488023.

Adding to 133334503 its reverse (305433331), we get a palindrome (438767834).

The spelling of 133334503 in words is "one hundred thirty-three million, three hundred thirty-four thousand, five hundred three".