9108561 has 48 divisors (see below), whose sum is σ = 15890688. Its totient is φ = 4586400.

The previous prime is 9108559. The next prime is 9108563. The reversal of 9108561 is 1658019.

It is a happy number.

9108561 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9108559) and next prime (9108563).

It is not a de Polignac number, because 9108561 - 2¹ = 9108559 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9108563) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69466 + ... + 69596.

It is an arithmetic number, because the mean of its divisors is an integer number (331056).

Almost surely, 2^9108561 is an apocalyptic number.

It is an amenable number.

9108561 is a deficient number, since it is larger than the sum of its proper divisors (6782127).

9108561 is a wasteful number, since it uses less digits than its factorization.

9108561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 9108561 is about 3018.0392641581. The cubic root of 9108561 is about 208.8413973423.

It can be divided in two parts, 9108 and 561, that added together give a palindrome (9669).

The spelling of 9108561 in words is "nine million, one hundred eight thousand, five hundred sixty-one".