32561143 has 2 divisors, whose sum is σ = 32561144. Its totient is φ = 32561142.

The previous prime is 32561099. The next prime is 32561153. The reversal of 32561143 is 34116523.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32561143 - 2⁹ = 32560631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32561153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16280571 + 16280572.

It is an arithmetic number, because the mean of its divisors is an integer number (16280572).

Almost surely, 2^32561143 is an apocalyptic number.

32561143 is a deficient number, since it is larger than the sum of its proper divisors (1).

32561143 is an equidigital number, since it uses as much as digits as its factorization.

32561143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 32561143 is about 5706.2372015191. The cubic root of 32561143 is about 319.3252154506.

Adding to 32561143 its reverse (34116523), we get a palindrome (66677666).

The spelling of 32561143 in words is "thirty-two million, five hundred sixty-one thousand, one hundred forty-three".