9102561 has 16 divisors (see below), whose sum is σ = 13493760. Its totient is φ = 5420160.

The previous prime is 9102557. The next prime is 9102571. The reversal of 9102561 is 1652019.

It is not a de Polignac number, because 9102561 - 2² = 9102557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9102571) 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 in 15 ways as a sum of consecutive naturals, for example, 2556 + ... + 4973.

It is an arithmetic number, because the mean of its divisors is an integer number (843360).

Almost surely, 2^9102561 is an apocalyptic number.

It is an amenable number.

9102561 is a deficient number, since it is larger than the sum of its proper divisors (4391199).

9102561 is a wasteful number, since it uses less digits than its factorization.

9102561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7576.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 9102561 is about 3017.0450775552. The cubic root of 9102561 is about 208.7955312016.

The spelling of 9102561 in words is "nine million, one hundred two thousand, five hundred sixty-one".