23365161 has 6 divisors (see below), whose sum is σ = 33749690. Its totient is φ = 15576768.

The previous prime is 23365151. The next prime is 23365163. The reversal of 23365161 is 16156332.

23365161 is a `hidden beast` number, since 2 + 3 + 3 + 651 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18275625 + 5089536 = 4275^2 + 2256^2 .

It is not a de Polignac number, because 23365161 - 2¹¹ = 23363113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23365163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1298056 + ... + 1298073.

Almost surely, 2^23365161 is an apocalyptic number.

It is an amenable number.

23365161 is a deficient number, since it is larger than the sum of its proper divisors (10384529).

23365161 is a wasteful number, since it uses less digits than its factorization.

23365161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596135 (or 2596132 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 23365161 is about 4833.7522692004. The cubic root of 23365161 is about 285.8838305972.

The spelling of 23365161 in words is "twenty-three million, three hundred sixty-five thousand, one hundred sixty-one".