23061305 has 4 divisors (see below), whose sum is σ = 27673572. Its totient is φ = 18449040.

The previous prime is 23061289. The next prime is 23061317. The reversal of 23061305 is 50316032.

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 17505856 + 5555449 = 4184^2 + 2357^2 .

It is not a de Polignac number, because 23061305 - 2⁴ = 23061289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306126 + ... + 2306135.

It is an arithmetic number, because the mean of its divisors is an integer number (6918393).

Almost surely, 2^23061305 is an apocalyptic number.

It is an amenable number.

23061305 is a deficient number, since it is larger than the sum of its proper divisors (4612267).

23061305 is an equidigital number, since it uses as much as digits as its factorization.

23061305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4612266.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 23061305 is about 4802.2187580326. The cubic root of 23061305 is about 284.6391452228.

Adding to 23061305 its reverse (50316032), we get a palindrome (73377337).

The spelling of 23061305 in words is "twenty-three million, sixty-one thousand, three hundred five".