20044131 has 4 divisors (see below), whose sum is σ = 26725512. Its totient is φ = 13362752.

The previous prime is 20044127. The next prime is 20044147. The reversal of 20044131 is 13144002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20044131 - 2² = 20044127 is a prime.

It is a super-2 number, since 2×20044131² = 803534375090322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20044131.

It is not an unprimeable number, because it can be changed into a prime (20044151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3340686 + ... + 3340691.

It is an arithmetic number, because the mean of its divisors is an integer number (6681378).

Almost surely, 2^20044131 is an apocalyptic number.

20044131 is a deficient number, since it is larger than the sum of its proper divisors (6681381).

20044131 is an equidigital number, since it uses as much as digits as its factorization.

20044131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681380.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20044131 is about 4477.0672320170. The cubic root of 20044131 is about 271.6412649331.

Adding to 20044131 its reverse (13144002), we get a palindrome (33188133).

The spelling of 20044131 in words is "twenty million, forty-four thousand, one hundred thirty-one".