20481141 has 12 divisors (see below), whose sum is σ = 29010272. Its totient is φ = 12850368.

The previous prime is 20481079. The next prime is 20481193. The reversal of 20481141 is 14118402.

It is a happy number.

It is not a de Polignac number, because 20481141 - 2⁶ = 20481077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20481341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10945 + ... + 12678.

Almost surely, 2^20481141 is an apocalyptic number.

It is an amenable number.

20481141 is a deficient number, since it is larger than the sum of its proper divisors (8529131).

20481141 is a wasteful number, since it uses less digits than its factorization.

20481141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23660 (or 23643 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 20481141 is about 4525.6094617189. The cubic root of 20481141 is about 273.6012323181.

Adding to 20481141 its reverse (14118402), we get a palindrome (34599543).

The spelling of 20481141 in words is "twenty million, four hundred eighty-one thousand, one hundred forty-one".