7285081 has 2 divisors, whose sum is σ = 7285082. Its totient is φ = 7285080.

The previous prime is 7285067. The next prime is 7285099. The reversal of 7285081 is 1805827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7203856 + 81225 = 2684^2 + 285^2 .

It is an emirp because it is prime and its reverse (1805827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7285081 - 2⁵ = 7285049 is a prime.

It is a super-2 number, since 2×7285081² = 106144810353122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7285001) 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, 3642540 + 3642541.

It is an arithmetic number, because the mean of its divisors is an integer number (3642541).

Almost surely, 2^7285081 is an apocalyptic number.

It is an amenable number.

7285081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7285081 is an equidigital number, since it uses as much as digits as its factorization.

7285081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 7285081 is about 2699.0889203581. The cubic root of 7285081 is about 193.8555005030.

The spelling of 7285081 in words is "seven million, two hundred eighty-five thousand, eighty-one".