7144561 has 2 divisors, whose sum is σ = 7144562. Its totient is φ = 7144560.

The previous prime is 7144549. The next prime is 7144591. The reversal of 7144561 is 1654417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3744225 + 3400336 = 1935^2 + 1844^2 .

It is a cyclic number.

It is not a de Polignac number, because 7144561 - 2⁷ = 7144433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7144531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3572280 + 3572281.

It is an arithmetic number, because the mean of its divisors is an integer number (3572281).

Almost surely, 2^7144561 is an apocalyptic number.

It is an amenable number.

7144561 is a deficient number, since it is larger than the sum of its proper divisors (1).

7144561 is an equidigital number, since it uses as much as digits as its factorization.

7144561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 7144561 is about 2672.9311626003. The cubic root of 7144561 is about 192.6009904672.

Adding to 7144561 its reverse (1654417), we get a palindrome (8798978).

The spelling of 7144561 in words is "seven million, one hundred forty-four thousand, five hundred sixty-one".