5611161 has 8 divisors (see below), whose sum is σ = 7683904. Its totient is φ = 3639600.

The previous prime is 5611157. The next prime is 5611169. The reversal of 5611161 is 1611165.

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

It is not a de Polignac number, because 5611161 - 2² = 5611157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5611169) 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, 25165 + ... + 25386.

It is an arithmetic number, because the mean of its divisors is an integer number (960488).

Almost surely, 2^5611161 is an apocalyptic number.

It is an amenable number.

5611161 is a deficient number, since it is larger than the sum of its proper divisors (2072743).

5611161 is a wasteful number, since it uses less digits than its factorization.

5611161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50591.

The product of its digits is 180, while the sum is 21.

The square root of 5611161 is about 2368.7889310785. The cubic root of 5611161 is about 177.6986970182.

The spelling of 5611161 in words is "five million, six hundred eleven thousand, one hundred sixty-one".