9406181 has 2 divisors, whose sum is σ = 9406182. Its totient is φ = 9406180.

The previous prime is 9406171. The next prime is 9406211. The reversal of 9406181 is 1816049.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6630625 + 2775556 = 2575^2 + 1666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9406181 is a prime.

It is a super-2 number, since 2×9406181² = 176952482009522, 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 (9406171) 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, 4703090 + 4703091.

It is an arithmetic number, because the mean of its divisors is an integer number (4703091).

Almost surely, 2^9406181 is an apocalyptic number.

It is an amenable number.

9406181 is a deficient number, since it is larger than the sum of its proper divisors (1).

9406181 is an equidigital number, since it uses as much as digits as its factorization.

9406181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 9406181 is about 3066.9497876555. The cubic root of 9406181 is about 211.0916771789.

The spelling of 9406181 in words is "nine million, four hundred six thousand, one hundred eighty-one".