23308081 has 4 divisors (see below), whose sum is σ = 23603200. Its totient is φ = 23012964.

The previous prime is 23308069. The next prime is 23308157. The reversal of 23308081 is 18080332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23308081 - 2⁷ = 23307953 is a prime.

It is a super-2 number, since 2×23308081² = 1086533279805122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23308781) 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 in 3 ways as a sum of consecutive naturals, for example, 147441 + ... + 147598.

It is an arithmetic number, because the mean of its divisors is an integer number (5900800).

Almost surely, 2^23308081 is an apocalyptic number.

It is an amenable number.

23308081 is a deficient number, since it is larger than the sum of its proper divisors (295119).

23308081 is an equidigital number, since it uses as much as digits as its factorization.

23308081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295118.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 23308081 is about 4827.8443429754. The cubic root of 23308081 is about 285.6508404720.

The spelling of 23308081 in words is "twenty-three million, three hundred eight thousand, eighty-one".