20041147 has 20 divisors (see below), whose sum is σ = 24805656. Its totient is φ = 16134720.

The previous prime is 20041121. The next prime is 20041183. The reversal of 20041147 is 74114002.

It is not a de Polignac number, because 20041147 - 2¹¹ = 20039099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20041187) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 40572 + ... + 41062.

Almost surely, 2^20041147 is an apocalyptic number.

20041147 is a deficient number, since it is larger than the sum of its proper divisors (4764509).

20041147 is an frugal number, since it uses more digits than its factorization.

20041147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20041147 is about 4476.7339657389. The cubic root of 20041147 is about 271.6277843826.

Adding to 20041147 its reverse (74114002), we get a palindrome (94155149).

The spelling of 20041147 in words is "twenty million, forty-one thousand, one hundred forty-seven".