23165161 has 8 divisors (see below), whose sum is σ = 24490400. Its totient is φ = 21850560.

The previous prime is 23165137. The next prime is 23165167. The reversal of 23165161 is 16156132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23165161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23165167) 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, 2050 + ... + 7108.

It is an arithmetic number, because the mean of its divisors is an integer number (3061300).

Almost surely, 2^23165161 is an apocalyptic number.

It is an amenable number.

23165161 is a deficient number, since it is larger than the sum of its proper divisors (1325239).

23165161 is a wasteful number, since it uses less digits than its factorization.

23165161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319.

The product of its digits is 1080, while the sum is 25.

The square root of 23165161 is about 4813.0199459383. The cubic root of 23165161 is about 285.0657937768.

The spelling of 23165161 in words is "twenty-three million, one hundred sixty-five thousand, one hundred sixty-one".