7255181 has 2 divisors, whose sum is σ = 7255182. Its totient is φ = 7255180.

The previous prime is 7255163. The next prime is 7255187. The reversal of 7255181 is 1815527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7070281 + 184900 = 2659^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 7255181 - 2¹⁴ = 7238797 is a prime.

It is a super-2 number, since 2×7255181² = 105275302685522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7255187) 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, 3627590 + 3627591.

It is an arithmetic number, because the mean of its divisors is an integer number (3627591).

Almost surely, 2^7255181 is an apocalyptic number.

It is an amenable number.

7255181 is a deficient number, since it is larger than the sum of its proper divisors (1).

7255181 is an equidigital number, since it uses as much as digits as its factorization.

7255181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2800, while the sum is 29.

The square root of 7255181 is about 2693.5443192938. The cubic root of 7255181 is about 193.5899245292.

The spelling of 7255181 in words is "seven million, two hundred fifty-five thousand, one hundred eighty-one".