23105532 has 12 divisors (see below), whose sum is σ = 53912936. Its totient is φ = 7701840.

The previous prime is 23105531. The next prime is 23105543. The reversal of 23105532 is 23550132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 23105499 and 23105508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23105531) 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, 962719 + ... + 962742.

Almost surely, 2^23105532 is an apocalyptic number.

It is an amenable number.

23105532 is an abundant number, since it is smaller than the sum of its proper divisors (30807404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23105532 is a wasteful number, since it uses less digits than its factorization.

23105532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925468 (or 1925466 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 23105532 is about 4806.8214029647. The cubic root of 23105532 is about 284.8209894632.

Adding to 23105532 its reverse (23550132), we get a palindrome (46655664).

The spelling of 23105532 in words is "twenty-three million, one hundred five thousand, five hundred thirty-two".