7245181 has 2 divisors, whose sum is σ = 7245182. Its totient is φ = 7245180.

The previous prime is 7245167. The next prime is 7245197. The reversal of 7245181 is 1815427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7128900 + 116281 = 2670^2 + 341^2 .

It is an emirp because it is prime and its reverse (1815427) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7245181 is a prime.

It is a super-2 number, since 2×7245181² = 104985295445522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7245881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3622590 + 3622591.

It is an arithmetic number, because the mean of its divisors is an integer number (3622591).

Almost surely, 2^7245181 is an apocalyptic number.

It is an amenable number.

7245181 is a deficient number, since it is larger than the sum of its proper divisors (1).

7245181 is an equidigital number, since it uses as much as digits as its factorization.

7245181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 28.

The square root of 7245181 is about 2691.6873889811. The cubic root of 7245181 is about 193.5009403324.

The spelling of 7245181 in words is "seven million, two hundred forty-five thousand, one hundred eighty-one".