23732161 has 2 divisors, whose sum is σ = 23732162. Its totient is φ = 23732160.

The previous prime is 23732141. The next prime is 23732167. The reversal of 23732161 is 16123732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16810000 + 6922161 = 4100^2 + 2631^2 .

It is a cyclic number.

It is not a de Polignac number, because 23732161 - 2⁵ = 23732129 is a prime.

It is not a weakly prime, because it can be changed into another prime (23732167) 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 as a sum of consecutive naturals, namely, 11866080 + 11866081.

It is an arithmetic number, because the mean of its divisors is an integer number (11866081).

Almost surely, 2^23732161 is an apocalyptic number.

It is an amenable number.

23732161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23732161 is an equidigital number, since it uses as much as digits as its factorization.

23732161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 25.

The square root of 23732161 is about 4871.5665858120. The cubic root of 23732161 is about 287.3728677981.

Adding to 23732161 its reverse (16123732), we get a palindrome (39855893).

The spelling of 23732161 in words is "twenty-three million, seven hundred thirty-two thousand, one hundred sixty-one".