23243251 has 4 divisors (see below), whose sum is σ = 24466600. Its totient is φ = 22019904.

The previous prime is 23243249. The next prime is 23243287. The reversal of 23243251 is 15234232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23243251 - 2¹ = 23243249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23243201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611646 + ... + 611683.

It is an arithmetic number, because the mean of its divisors is an integer number (6116650).

Almost surely, 2^23243251 is an apocalyptic number.

23243251 is a deficient number, since it is larger than the sum of its proper divisors (1223349).

23243251 is a wasteful number, since it uses less digits than its factorization.

23243251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223348.

The product of its digits is 1440, while the sum is 22.

The square root of 23243251 is about 4821.1254910031. The cubic root of 23243251 is about 285.3857544395.

Adding to 23243251 its reverse (15234232), we get a palindrome (38477483).

The spelling of 23243251 in words is "twenty-three million, two hundred forty-three thousand, two hundred fifty-one".