23032081 has 4 divisors (see below), whose sum is σ = 23048500. Its totient is φ = 23015664.

The previous prime is 23032067. The next prime is 23032091. The reversal of 23032081 is 18023032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6548481 + 16483600 = 2559^2 + 4060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23032081 is a prime.

It is a super-2 number, since 2×23032081² = 1060953510381122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23032001) 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, 5886 + ... + 8983.

It is an arithmetic number, because the mean of its divisors is an integer number (5762125).

Almost surely, 2^23032081 is an apocalyptic number.

It is an amenable number.

23032081 is a deficient number, since it is larger than the sum of its proper divisors (16419).

23032081 is a wasteful number, since it uses less digits than its factorization.

23032081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16418.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 23032081 is about 4799.1750332739. The cubic root of 23032081 is about 284.5188598849.

The spelling of 23032081 in words is "twenty-three million, thirty-two thousand, eighty-one".