23305081 has 2 divisors, whose sum is σ = 23305082. Its totient is φ = 23305080.

The previous prime is 23305063. The next prime is 23305127. The reversal of 23305081 is 18050332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22005481 + 1299600 = 4691^2 + 1140^2 .

It is a cyclic number.

It is not a de Polignac number, because 23305081 - 2¹⁵ = 23272313 is a prime.

It is a super-2 number, since 2×23305081² = 1086253600833122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23305781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11652540 + 11652541.

It is an arithmetic number, because the mean of its divisors is an integer number (11652541).

Almost surely, 2^23305081 is an apocalyptic number.

It is an amenable number.

23305081 is a deficient number, since it is larger than the sum of its proper divisors (1).

23305081 is an equidigital number, since it uses as much as digits as its factorization.

23305081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 23305081 is about 4827.5336353049. The cubic root of 23305081 is about 285.6385845039.

The spelling of 23305081 in words is "twenty-three million, three hundred five thousand, eighty-one".