133003109 has 4 divisors (see below), whose sum is σ = 133276704. Its totient is φ = 132729516.

The previous prime is 133003099. The next prime is 133003111. The reversal of 133003109 is 901300331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 901300331 = 127 ⋅7096853.

It is a cyclic number.

It is not a de Polignac number, because 133003109 - 2²⁰ = 131954533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133003009) 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 3 ways as a sum of consecutive naturals, for example, 136067 + ... + 137040.

It is an arithmetic number, because the mean of its divisors is an integer number (33319176).

Almost surely, 2^133003109 is an apocalyptic number.

It is an amenable number.

133003109 is a deficient number, since it is larger than the sum of its proper divisors (273595).

133003109 is an equidigital number, since it uses as much as digits as its factorization.

133003109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273594.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 133003109 is about 11532.6973861278. The cubic root of 133003109 is about 510.4508495609.

The spelling of 133003109 in words is "one hundred thirty-three million, three thousand, one hundred nine".