20041541 has 6 divisors (see below), whose sum is σ = 21701970. Its totient is φ = 18499728.

The previous prime is 20041537. The next prime is 20041573. The reversal of 20041541 is 14514002.

It can be written as a sum of positive squares in 3 ways, for example, as 2819041 + 17222500 = 1679^2 + 4150^2 .

It is not a de Polignac number, because 20041541 - 2² = 20041537 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 (20041501) 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 5 ways as a sum of consecutive naturals, for example, 59126 + ... + 59463.

It is an arithmetic number, because the mean of its divisors is an integer number (3616995).

Almost surely, 2^20041541 is an apocalyptic number.

It is an amenable number.

20041541 is a deficient number, since it is larger than the sum of its proper divisors (1660429).

20041541 is a wasteful number, since it uses less digits than its factorization.

20041541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118615 (or 118602 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 20041541 is about 4476.7779708179. Note that the first 3 decimals coincide. The cubic root of 20041541 is about 271.6295643979.

Adding to 20041541 its reverse (14514002), we get a palindrome (34555543).

The spelling of 20041541 in words is "twenty million, forty-one thousand, five hundred forty-one".