7494181 has 2 divisors, whose sum is σ = 7494182. Its totient is φ = 7494180.

The previous prime is 7494163. The next prime is 7494203. The reversal of 7494181 is 1814947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3865156 + 3629025 = 1966^2 + 1905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7494181 is a prime.

It is a super-2 number, since 2×7494181² = 112325497721522, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7494101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3747090 + 3747091.

It is an arithmetic number, because the mean of its divisors is an integer number (3747091).

Almost surely, 2^7494181 is an apocalyptic number.

It is an amenable number.

7494181 is a deficient number, since it is larger than the sum of its proper divisors (1).

7494181 is an equidigital number, since it uses as much as digits as its factorization.

7494181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 7494181 is about 2737.5501821884. The cubic root of 7494181 is about 195.6927453720.

The spelling of 7494181 in words is "seven million, four hundred ninety-four thousand, one hundred eighty-one".