133400403 has 12 divisors (see below), whose sum is σ = 193321128. Its totient is φ = 88642080.

The previous prime is 133400381. The next prime is 133400441. The reversal of 133400403 is 304004331.

It is not a de Polignac number, because 133400403 - 2¹⁴ = 133384019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133400453) 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 11 ways as a sum of consecutive naturals, for example, 21378 + ... + 26903.

It is an arithmetic number, because the mean of its divisors is an integer number (16110094).

Almost surely, 2^133400403 is an apocalyptic number.

133400403 is a deficient number, since it is larger than the sum of its proper divisors (59920725).

133400403 is a wasteful number, since it uses less digits than its factorization.

133400403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48594 (or 48591 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 133400403 is about 11549.9092204225. The cubic root of 133400403 is about 510.9586007670.

Adding to 133400403 its reverse (304004331), we get a palindrome (437404734).

The spelling of 133400403 in words is "one hundred thirty-three million, four hundred thousand, four hundred three".