20242133 has 4 divisors (see below), whose sum is σ = 20585280. Its totient is φ = 19898988.

The previous prime is 20242129. The next prime is 20242169. The reversal of 20242133 is 33124202.

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: 33124202 = 2 ⋅16562101.

It is a cyclic number.

It is not a de Polignac number, because 20242133 - 2² = 20242129 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 (20242333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171485 + ... + 171602.

It is an arithmetic number, because the mean of its divisors is an integer number (5146320).

Almost surely, 2^20242133 is an apocalyptic number.

It is an amenable number.

20242133 is a deficient number, since it is larger than the sum of its proper divisors (343147).

20242133 is an equidigital number, since it uses as much as digits as its factorization.

20242133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343146.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20242133 is about 4499.1258039757. The cubic root of 20242133 is about 272.5327873463.

Adding to 20242133 its reverse (33124202), we get a palindrome (53366335).

The spelling of 20242133 in words is "twenty million, two hundred forty-two thousand, one hundred thirty-three".