133221003 has 8 divisors (see below), whose sum is σ = 177806400. Its totient is φ = 88724808.

The previous prime is 133220987. The next prime is 133221017. The reversal of 133221003 is 300122331.

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

It is not a de Polignac number, because 133221003 - 2⁴ = 133220987 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (133221073) 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, 18733 + ... + 24846.

It is an arithmetic number, because the mean of its divisors is an integer number (22225800).

Almost surely, 2^133221003 is an apocalyptic number.

133221003 is a deficient number, since it is larger than the sum of its proper divisors (44585397).

133221003 is a wasteful number, since it uses less digits than its factorization.

133221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44601.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 133221003 is about 11542.1403127843. The cubic root of 133221003 is about 510.7294482978.

Adding to 133221003 its reverse (300122331), we get a palindrome (433343334).

The spelling of 133221003 in words is "one hundred thirty-three million, two hundred twenty-one thousand, three".