23180089 has 4 divisors (see below), whose sum is σ = 23189760. Its totient is φ = 23170420.

The previous prime is 23180083. The next prime is 23180099. The reversal of 23180089 is 98008132.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23180089 - 2³ = 23180081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23180089.

It is not an unprimeable number, because it can be changed into a prime (23180081) 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, 1752 + ... + 7030.

It is an arithmetic number, because the mean of its divisors is an integer number (5797440).

Almost surely, 2^23180089 is an apocalyptic number.

It is an amenable number.

23180089 is a deficient number, since it is larger than the sum of its proper divisors (9671).

23180089 is an equidigital number, since it uses as much as digits as its factorization.

23180089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 23180089 is about 4814.5704896699. The cubic root of 23180089 is about 285.1270142795.

The spelling of 23180089 in words is "twenty-three million, one hundred eighty thousand, eighty-nine".