133253135503 has 4 divisors (see below), whose sum is σ = 137848071240. Its totient is φ = 128658199768.

The previous prime is 133253135467. The next prime is 133253135513. The reversal of 133253135503 is 305531352331.

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 133253135503 - 2¹⁷ = 133253004431 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 (133253135513) 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, 2297467825 + ... + 2297467882.

It is an arithmetic number, because the mean of its divisors is an integer number (34462017810).

Almost surely, 2^133253135503 is an apocalyptic number.

133253135503 is a deficient number, since it is larger than the sum of its proper divisors (4594935737).

133253135503 is an equidigital number, since it uses as much as digits as its factorization.

133253135503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594935736.

The product of its (nonzero) digits is 60750, while the sum is 34.

Adding to 133253135503 its reverse (305531352331), we get a palindrome (438784487834).

The spelling of 133253135503 in words is "one hundred thirty-three billion, two hundred fifty-three million, one hundred thirty-five thousand, five hundred three".