23180009 has 4 divisors (see below), whose sum is σ = 23506560. Its totient is φ = 22853460.

The previous prime is 23179997. The next prime is 23180011. The reversal of 23180009 is 90008132.

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 23180009 - 2¹⁶ = 23114473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23180099) 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, 163169 + ... + 163310.

It is an arithmetic number, because the mean of its divisors is an integer number (5876640).

Almost surely, 2^23180009 is an apocalyptic number.

It is an amenable number.

23180009 is a deficient number, since it is larger than the sum of its proper divisors (326551).

23180009 is an equidigital number, since it uses as much as digits as its factorization.

23180009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326550.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 23180009 is about 4814.5621815488. The cubic root of 23180009 is about 285.1266862654.

The spelling of 23180009 in words is "twenty-three million, one hundred eighty thousand, nine".