23105161 has 2 divisors, whose sum is σ = 23105162. Its totient is φ = 23105160.

The previous prime is 23105119. The next prime is 23105183. The reversal of 23105161 is 16150132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22657600 + 447561 = 4760^2 + 669^2 .

It is a cyclic number.

It is not a de Polignac number, because 23105161 - 2¹⁵ = 23072393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23109161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11552580 + 11552581.

It is an arithmetic number, because the mean of its divisors is an integer number (11552581).

Almost surely, 2^23105161 is an apocalyptic number.

It is an amenable number.

23105161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23105161 is an equidigital number, since it uses as much as digits as its factorization.

23105161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 23105161 is about 4806.7828118191. The cubic root of 23105161 is about 284.8194650209.

Adding to 23105161 its reverse (16150132), we get a palindrome (39255293).

The spelling of 23105161 in words is "twenty-three million, one hundred five thousand, one hundred sixty-one".