23251745 has 8 divisors (see below), whose sum is σ = 30438720. Its totient is φ = 16910320.

The previous prime is 23251727. The next prime is 23251751. The reversal of 23251745 is 54715232.

It is a happy number.

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

It is not a de Polignac number, because 23251745 - 2⁶ = 23251681 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211325 + ... + 211434.

It is an arithmetic number, because the mean of its divisors is an integer number (3804840).

Almost surely, 2^23251745 is an apocalyptic number.

It is an amenable number.

23251745 is a deficient number, since it is larger than the sum of its proper divisors (7186975).

23251745 is a wasteful number, since it uses less digits than its factorization.

23251745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422775.

The product of its digits is 8400, while the sum is 29.

The square root of 23251745 is about 4822.0063251721. The cubic root of 23251745 is about 285.4205139399.

Adding to 23251745 its reverse (54715232), we get a palindrome (77966977).

The spelling of 23251745 in words is "twenty-three million, two hundred fifty-one thousand, seven hundred forty-five".