7430561 has 2 divisors, whose sum is σ = 7430562. Its totient is φ = 7430560.

The previous prime is 7430557. The next prime is 7430567. The reversal of 7430561 is 1650347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4389025 + 3041536 = 2095^2 + 1744^2 .

It is a cyclic number.

It is not a de Polignac number, because 7430561 - 2² = 7430557 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 7430561.

It is not a weakly prime, because it can be changed into another prime (7430567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3715280 + 3715281.

It is an arithmetic number, because the mean of its divisors is an integer number (3715281).

Almost surely, 2^7430561 is an apocalyptic number.

It is an amenable number.

7430561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7430561 is an equidigital number, since it uses as much as digits as its factorization.

7430561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 7430561 is about 2725.9055376150. The cubic root of 7430561 is about 195.1374091769.

The spelling of 7430561 in words is "seven million, four hundred thirty thousand, five hundred sixty-one".