9661161 has 8 divisors (see below), whose sum is σ = 12996000. Its totient is φ = 6383552.

The previous prime is 9661159. The next prime is 9661163. The reversal of 9661161 is 1611669.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9661159) and next prime (9661163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9661161 - 2¹ = 9661159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9661163) 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 in 7 ways as a sum of consecutive naturals, for example, 13911 + ... + 14588.

It is an arithmetic number, because the mean of its divisors is an integer number (1624500).

Almost surely, 2^9661161 is an apocalyptic number.

It is an amenable number.

9661161 is a deficient number, since it is larger than the sum of its proper divisors (3334839).

9661161 is a wasteful number, since it uses less digits than its factorization.

9661161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28615.

The product of its digits is 1944, while the sum is 30.

The square root of 9661161 is about 3108.2408207859. The cubic root of 9661161 is about 212.9821008125.

The spelling of 9661161 in words is "nine million, six hundred sixty-one thousand, one hundred sixty-one".