23205130 has 16 divisors (see below), whose sum is σ = 44982504. Its totient is φ = 8568000.

The previous prime is 23205109. The next prime is 23205181. The reversal of 23205130 is 3150232.

It can be written as a sum of positive squares in 4 ways, for example, as 13786369 + 9418761 = 3713^2 + 3069^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89121 + ... + 89380.

Almost surely, 2^23205130 is an apocalyptic number.

23205130 is a deficient number, since it is larger than the sum of its proper divisors (21777374).

23205130 is a wasteful number, since it uses less digits than its factorization.

23205130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178521.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 23205130 is about 4817.1703312214. The cubic root of 23205130 is about 285.2296497222.

Adding to 23205130 its reverse (3150232), we get a palindrome (26355362).

The spelling of 23205130 in words is "twenty-three million, two hundred five thousand, one hundred thirty".