133012403 has 8 divisors (see below), whose sum is σ = 140991840. Its totient is φ = 125050240.

The previous prime is 133012367. The next prime is 133012417. The reversal of 133012403 is 304210331.

It is a happy number.

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 133012403 - 2¹² = 133008307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133012433) 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 7 ways as a sum of consecutive naturals, for example, 13733 + ... + 21321.

It is an arithmetic number, because the mean of its divisors is an integer number (17623980).

Almost surely, 2^133012403 is an apocalyptic number.

133012403 is a deficient number, since it is larger than the sum of its proper divisors (7979437).

133012403 is a wasteful number, since it uses less digits than its factorization.

133012403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8637.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 133012403 is about 11533.1003203822. The cubic root of 133012403 is about 510.4627390567.

Adding to 133012403 its reverse (304210331), we get a palindrome (437222734).

The spelling of 133012403 in words is "one hundred thirty-three million, twelve thousand, four hundred three".