7285541 has 2 divisors, whose sum is σ = 7285542. Its totient is φ = 7285540.

The previous prime is 7285529. The next prime is 7285543. The reversal of 7285541 is 1455827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5452225 + 1833316 = 2335^2 + 1354^2 .

It is an emirp because it is prime and its reverse (1455827) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7285541 is a prime.

It is a Sophie Germain prime.

Together with 7285543, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7285498 and 7285507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7285543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3642770 + 3642771.

It is an arithmetic number, because the mean of its divisors is an integer number (3642771).

Almost surely, 2^7285541 is an apocalyptic number.

It is an amenable number.

7285541 is a deficient number, since it is larger than the sum of its proper divisors (1).

7285541 is an equidigital number, since it uses as much as digits as its factorization.

7285541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11200, while the sum is 32.

The square root of 7285541 is about 2699.1741329525. The cubic root of 7285541 is about 193.8595806065.

The spelling of 7285541 in words is "seven million, two hundred eighty-five thousand, five hundred forty-one".