23109235 has 4 divisors (see below), whose sum is σ = 27731088. Its totient is φ = 18487384.

The previous prime is 23109223. The next prime is 23109253. The reversal of 23109235 is 53290132.

It is a happy number.

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 23109235 - 2¹¹ = 23107187 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 2310919 + ... + 2310928.

It is an arithmetic number, because the mean of its divisors is an integer number (6932772).

Almost surely, 2^23109235 is an apocalyptic number.

23109235 is a deficient number, since it is larger than the sum of its proper divisors (4621853).

23109235 is an equidigital number, since it uses as much as digits as its factorization.

23109235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621852.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 23109235 is about 4807.2065693082. The cubic root of 23109235 is about 284.8362042292.

Adding to 23109235 its reverse (53290132), we get a palindrome (76399367).

The spelling of 23109235 in words is "twenty-three million, one hundred nine thousand, two hundred thirty-five".