23305136 has 20 divisors (see below), whose sum is σ = 45393672. Its totient is φ = 11590656.

The previous prime is 23305133. The next prime is 23305151. The reversal of 23305136 is 63150332.

It is not an unprimeable number, because it can be changed into a prime (23305133) by changing a digit.

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, 686 + ... + 6861.

Almost surely, 2^23305136 is an apocalyptic number.

It is an amenable number.

23305136 is a deficient number, since it is larger than the sum of its proper divisors (22088536).

23305136 is a wasteful number, since it uses less digits than its factorization.

23305136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7748 (or 7742 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 23305136 is about 4827.5393317921. The cubic root of 23305136 is about 285.6388092062.

Adding to 23305136 its reverse (63150332), we get a palindrome (86455468).

The spelling of 23305136 in words is "twenty-three million, three hundred five thousand, one hundred thirty-six".