9557161 has 2 divisors, whose sum is σ = 9557162. Its totient is φ = 9557160.

The previous prime is 9557147. The next prime is 9557189. The reversal of 9557161 is 1617559.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7123561 + 2433600 = 2669^2 + 1560^2 .

It is a cyclic number.

It is not a de Polignac number, because 9557161 - 2⁵ = 9557129 is a prime.

It is a super-3 number, since 3×9557161³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (9557461) 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, 4778580 + 4778581.

It is an arithmetic number, because the mean of its divisors is an integer number (4778581).

Almost surely, 2^9557161 is an apocalyptic number.

It is an amenable number.

9557161 is a deficient number, since it is larger than the sum of its proper divisors (1).

9557161 is an equidigital number, since it uses as much as digits as its factorization.

9557161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 34.

The square root of 9557161 is about 3091.4658335489. The cubic root of 9557161 is about 212.2151088848.

The spelling of 9557161 in words is "nine million, five hundred fifty-seven thousand, one hundred sixty-one".