23118245 has 4 divisors (see below), whose sum is σ = 27741900. Its totient is φ = 18494592.

The previous prime is 23118233. The next prime is 23118253. The reversal of 23118245 is 54281132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7134241 + 15984004 = 2671^2 + 3998^2 .

It is a cyclic number.

It is not a de Polignac number, because 23118245 - 2⁸ = 23117989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311820 + ... + 2311829.

It is an arithmetic number, because the mean of its divisors is an integer number (6935475).

Almost surely, 2^23118245 is an apocalyptic number.

It is an amenable number.

23118245 is a deficient number, since it is larger than the sum of its proper divisors (4623655).

23118245 is an equidigital number, since it uses as much as digits as its factorization.

23118245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4623654.

The product of its digits is 1920, while the sum is 26.

The square root of 23118245 is about 4808.1436126638. The cubic root of 23118245 is about 284.8732174368.

Adding to 23118245 its reverse (54281132), we get a palindrome (77399377).

The spelling of 23118245 in words is "twenty-three million, one hundred eighteen thousand, two hundred forty-five".