20133109 has 8 divisors (see below), whose sum is σ = 20401920. Its totient is φ = 19866336.

The previous prime is 20133107. The next prime is 20133131. The reversal of 20133109 is 90133102.

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 20133109 - 2¹ = 20133107 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 (20133107) 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, 30222 + ... + 30880.

It is an arithmetic number, because the mean of its divisors is an integer number (2550240).

Almost surely, 2^20133109 is an apocalyptic number.

It is an amenable number.

20133109 is a deficient number, since it is larger than the sum of its proper divisors (268811).

20133109 is a wasteful number, since it uses less digits than its factorization.

20133109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 20133109 is about 4486.9933140133. The cubic root of 20133109 is about 272.0426196552.

The spelling of 20133109 in words is "twenty million, one hundred thirty-three thousand, one hundred nine".