133473403 has 6 divisors (see below), whose sum is σ = 155265036. Its totient is φ = 114405732.

The previous prime is 133473401. The next prime is 133473407. The reversal of 133473403 is 304374331.

It is not a de Polignac number, because 133473403 - 2¹ = 133473401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133473401) 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 5 ways as a sum of consecutive naturals, for example, 1361925 + ... + 1362022.

It is an arithmetic number, because the mean of its divisors is an integer number (25877506).

Almost surely, 2^133473403 is an apocalyptic number.

133473403 is a deficient number, since it is larger than the sum of its proper divisors (21791633).

133473403 is an equidigital number, since it uses as much as digits as its factorization.

133473403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723961 (or 2723954 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 28.

The square root of 133473403 is about 11553.0689862045. The cubic root of 133473403 is about 511.0517868326.

Subtracting from 133473403 its product of nonzero digits (9072), we obtain a palindrome (133464331).

The spelling of 133473403 in words is "one hundred thirty-three million, four hundred seventy-three thousand, four hundred three".