20089541 has 2 divisors, whose sum is σ = 20089542. Its totient is φ = 20089540.

The previous prime is 20089513. The next prime is 20089561. The reversal of 20089541 is 14598002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15484225 + 4605316 = 3935^2 + 2146^2 .

It is a cyclic number.

It is not a de Polignac number, because 20089541 - 2⁶ = 20089477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20089561) 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 as a sum of consecutive naturals, namely, 10044770 + 10044771.

It is an arithmetic number, because the mean of its divisors is an integer number (10044771).

Almost surely, 2^20089541 is an apocalyptic number.

It is an amenable number.

20089541 is a deficient number, since it is larger than the sum of its proper divisors (1).

20089541 is an equidigital number, since it uses as much as digits as its factorization.

20089541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 20089541 is about 4482.1357632272. The cubic root of 20089541 is about 271.8462447414.

The spelling of 20089541 in words is "twenty million, eighty-nine thousand, five hundred forty-one".