23105506 has 8 divisors (see below), whose sum is σ = 34782444. Its totient is φ = 11511360.

The previous prime is 23105503. The next prime is 23105527. The reversal of 23105506 is 60550132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21762225 + 1343281 = 4665^2 + 1159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23105503) 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, 19995 + ... + 21118.

Almost surely, 2^23105506 is an apocalyptic number.

23105506 is a deficient number, since it is larger than the sum of its proper divisors (11676938).

23105506 is a wasteful number, since it uses less digits than its factorization.

23105506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41396.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 23105506 is about 4806.8186984741. The cubic root of 23105506 is about 284.8208826295.

Adding to 23105506 its reverse (60550132), we get a palindrome (83655638).

The spelling of 23105506 in words is "twenty-three million, one hundred five thousand, five hundred six".