9200561 has 2 divisors, whose sum is σ = 9200562. Its totient is φ = 9200560.

The previous prime is 9200489. The next prime is 9200563. The reversal of 9200561 is 1650029.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7054336 + 2146225 = 2656^2 + 1465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9200561 is a prime.

Together with 9200563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9200563) 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, 4600280 + 4600281.

It is an arithmetic number, because the mean of its divisors is an integer number (4600281).

Almost surely, 2^9200561 is an apocalyptic number.

It is an amenable number.

9200561 is a deficient number, since it is larger than the sum of its proper divisors (1).

9200561 is an equidigital number, since it uses as much as digits as its factorization.

9200561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 9200561 is about 3033.2426543223. The cubic root of 9200561 is about 209.5421696336.

The spelling of 9200561 in words is "nine million, two hundred thousand, five hundred sixty-one".