133132403 has 8 divisors (see below), whose sum is σ = 135207072. Its totient is φ = 131072256.

The previous prime is 133132397. The next prime is 133132451. The reversal of 133132403 is 304231331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133132403 - 2⁸ = 133132147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133132003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15626 + ... + 22592.

It is an arithmetic number, because the mean of its divisors is an integer number (16900884).

Almost surely, 2^133132403 is an apocalyptic number.

133132403 is a deficient number, since it is larger than the sum of its proper divisors (2074669).

133132403 is an equidigital number, since it uses as much as digits as its factorization.

133132403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7261.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 133132403 is about 11538.3015647885. The cubic root of 133132403 is about 510.6162012290.

Adding to 133132403 its reverse (304231331), we get a palindrome (437363734).

The spelling of 133132403 in words is "one hundred thirty-three million, one hundred thirty-two thousand, four hundred three".