23636161 has 2 divisors, whose sum is σ = 23636162. Its totient is φ = 23636160.

The previous prime is 23636153. The next prime is 23636177. The reversal of 23636161 is 16163632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22467600 + 1168561 = 4740^2 + 1081^2 .

It is a cyclic number.

It is not a de Polignac number, because 23636161 - 2³ = 23636153 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (23606161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11818080 + 11818081.

It is an arithmetic number, because the mean of its divisors is an integer number (11818081).

Almost surely, 2^23636161 is an apocalyptic number.

It is an amenable number.

23636161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23636161 is an equidigital number, since it uses as much as digits as its factorization.

23636161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 28.

The square root of 23636161 is about 4861.7035080309. The cubic root of 23636161 is about 286.9848559634.

Adding to 23636161 its reverse (16163632), we get a palindrome (39799793).

The spelling of 23636161 in words is "twenty-three million, six hundred thirty-six thousand, one hundred sixty-one".