20272133 has 12 divisors (see below), whose sum is σ = 23918112. Its totient is φ = 17128440.

The previous prime is 20272117. The next prime is 20272157. The reversal of 20272133 is 33127202.

It is not a de Polignac number, because 20272133 - 2⁴ = 20272117 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 (20272193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566 + ... + 6392.

It is an arithmetic number, because the mean of its divisors is an integer number (1993176).

Almost surely, 2^20272133 is an apocalyptic number.

It is an amenable number.

20272133 is a deficient number, since it is larger than the sum of its proper divisors (3645979).

20272133 is an equidigital number, since it uses as much as digits as its factorization.

20272133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5912 (or 5905 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 20272133 is about 4502.4585506143. The cubic root of 20272133 is about 272.6673572860.

Adding to 20272133 its reverse (33127202), we get a palindrome (53399335).

The spelling of 20272133 in words is "twenty million, two hundred seventy-two thousand, one hundred thirty-three".