133230009 has 32 divisors (see below), whose sum is σ = 198816768. Its totient is φ = 78680000.

The previous prime is 133229983. The next prime is 133230011. The reversal of 133230009 is 900032331.

It is a cyclic number.

It is not a de Polignac number, because 133230009 - 2⁹ = 133229497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133230049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236362 + ... + 236924.

It is an arithmetic number, because the mean of its divisors is an integer number (6213024).

Almost surely, 2^133230009 is an apocalyptic number.

It is an amenable number.

133230009 is a deficient number, since it is larger than the sum of its proper divisors (65586759).

133230009 is a wasteful number, since it uses less digits than its factorization.

133230009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 133230009 is about 11542.5304418052. The cubic root of 133230009 is about 510.7409568079.

The spelling of 133230009 in words is "one hundred thirty-three million, two hundred thirty thousand, nine".