23281265 has 8 divisors (see below), whose sum is σ = 31928640. Its totient is φ = 15964272.

The previous prime is 23281241. The next prime is 23281301. The reversal of 23281265 is 56218232.

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 23281265 - 2⁸ = 23281009 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332555 + ... + 332624.

It is an arithmetic number, because the mean of its divisors is an integer number (3991080).

Almost surely, 2^23281265 is an apocalyptic number.

It is an amenable number.

23281265 is a deficient number, since it is larger than the sum of its proper divisors (8647375).

23281265 is an equidigital number, since it uses as much as digits as its factorization.

23281265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665191.

The product of its digits is 5760, while the sum is 29.

The square root of 23281265 is about 4825.0663207877. The cubic root of 23281265 is about 285.5412511206.

Adding to 23281265 its reverse (56218232), we get a palindrome (79499497).

The spelling of 23281265 in words is "twenty-three million, two hundred eighty-one thousand, two hundred sixty-five".