9669181 has 2 divisors, whose sum is σ = 9669182. Its totient is φ = 9669180.

The previous prime is 9669167. The next prime is 9669197. The reversal of 9669181 is 1819669.

9669181 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6916900 + 2752281 = 2630^2 + 1659^2 .

It is a cyclic number.

It is not a de Polignac number, because 9669181 - 2⁷ = 9669053 is a prime.

It is a super-2 number, since 2×9669181² = 186986122421522, 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 (9649181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4834590 + 4834591.

It is an arithmetic number, because the mean of its divisors is an integer number (4834591).

Almost surely, 2^9669181 is an apocalyptic number.

It is an amenable number.

9669181 is a deficient number, since it is larger than the sum of its proper divisors (1).

9669181 is an equidigital number, since it uses as much as digits as its factorization.

9669181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 40.

The square root of 9669181 is about 3109.5306719825. The cubic root of 9669181 is about 213.0410186456.

The spelling of 9669181 in words is "nine million, six hundred sixty-nine thousand, one hundred eighty-one".