9120641 has 2 divisors, whose sum is σ = 9120642. Its totient is φ = 9120640.

The previous prime is 9120623. The next prime is 9120647. The reversal of 9120641 is 1460219.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7311616 + 1809025 = 2704^2 + 1345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9120641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9120647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4560320 + 4560321.

It is an arithmetic number, because the mean of its divisors is an integer number (4560321).

Almost surely, 2^9120641 is an apocalyptic number.

It is an amenable number.

9120641 is a deficient number, since it is larger than the sum of its proper divisors (1).

9120641 is an equidigital number, since it uses as much as digits as its factorization.

9120641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 9120641 is about 3020.0399003987. The cubic root of 9120641 is about 208.9336801091.

The spelling of 9120641 in words is "nine million, one hundred twenty thousand, six hundred forty-one".