23144425 has 24 divisors (see below), whose sum is σ = 29855232. Its totient is φ = 17784000.

The previous prime is 23144419. The next prime is 23144441. The reversal of 23144425 is 52444132.

It is a happy number.

It is not a de Polignac number, because 23144425 - 2²³ = 14755817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23144425.

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 23 ways as a sum of consecutive naturals, for example, 121080 + ... + 121270.

It is an arithmetic number, because the mean of its divisors is an integer number (1243968).

Almost surely, 2^23144425 is an apocalyptic number.

23144425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23144425 is a deficient number, since it is larger than the sum of its proper divisors (6710807).

23144425 is a wasteful number, since it uses less digits than its factorization.

23144425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 364 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 23144425 is about 4810.8653067821. The cubic root of 23144425 is about 284.9807107084.

Adding to 23144425 its reverse (52444132), we get a palindrome (75588557).

The spelling of 23144425 in words is "twenty-three million, one hundred forty-four thousand, four hundred twenty-five".