23105641 has 8 divisors (see below), whose sum is σ = 25291784. Its totient is φ = 20977920.

The previous prime is 23105629. The next prime is 23105651. The reversal of 23105641 is 14650132.

It can be written as a sum of positive squares in 4 ways, for example, as 495616 + 22610025 = 704^2 + 4755^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23105641 - 2⁵ = 23105609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23105651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13776 + ... + 15361.

It is an arithmetic number, because the mean of its divisors is an integer number (3161473).

Almost surely, 2^23105641 is an apocalyptic number.

It is an amenable number.

23105641 is a deficient number, since it is larger than the sum of its proper divisors (2186143).

23105641 is a wasteful number, since it uses less digits than its factorization.

23105641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29211.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 23105641 is about 4806.8327410052. The cubic root of 23105641 is about 284.8214373421.

Adding to 23105641 its reverse (14650132), we get a palindrome (37755773).

The spelling of 23105641 in words is "twenty-three million, one hundred five thousand, six hundred forty-one".