23144365 has 8 divisors (see below), whose sum is σ = 27806328. Its totient is φ = 18493440.

The previous prime is 23144357. The next prime is 23144389. The reversal of 23144365 is 56344132.

It can be written as a sum of positive squares in 4 ways, for example, as 11269449 + 11874916 = 3357^2 + 3446^2 .

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

It is not a de Polignac number, because 23144365 - 2³ = 23144357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2925 + ... + 7405.

It is an arithmetic number, because the mean of its divisors is an integer number (3475791).

Almost surely, 2^23144365 is an apocalyptic number.

It is an amenable number.

23144365 is a deficient number, since it is larger than the sum of its proper divisors (4661963).

23144365 is a wasteful number, since it uses less digits than its factorization.

23144365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5519.

The product of its digits is 8640, while the sum is 28.

The square root of 23144365 is about 4810.8590708937. The cubic root of 23144365 is about 284.9804644453.

Adding to 23144365 its reverse (56344132), we get a palindrome (79488497).

The spelling of 23144365 in words is "twenty-three million, one hundred forty-four thousand, three hundred sixty-five".