23205361 has 4 divisors (see below), whose sum is σ = 23643252. Its totient is φ = 22767472.

The previous prime is 23205331. The next prime is 23205373. The reversal of 23205361 is 16350232.

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 14205361 + 9000000 = 3769^2 + 3000^2 .

It is a cyclic number.

It is not a de Polignac number, because 23205361 - 2⁷ = 23205233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23205331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218866 + ... + 218971.

It is an arithmetic number, because the mean of its divisors is an integer number (5910813).

Almost surely, 2^23205361 is an apocalyptic number.

It is an amenable number.

23205361 is a deficient number, since it is larger than the sum of its proper divisors (437891).

23205361 is an equidigital number, since it uses as much as digits as its factorization.

23205361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437890.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 23205361 is about 4817.1943078933. The cubic root of 23205361 is about 285.2305961771.

Adding to 23205361 its reverse (16350232), we get a palindrome (39555593).

The spelling of 23205361 in words is "twenty-three million, two hundred five thousand, three hundred sixty-one".