23505132 has 24 divisors (see below), whose sum is σ = 62680576. Its totient is φ = 6715728.

The previous prime is 23505127. The next prime is 23505143. The reversal of 23505132 is 23150532.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23505099 and 23505108.

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 7 ways as a sum of consecutive naturals, for example, 139828 + ... + 139995.

Almost surely, 2^23505132 is an apocalyptic number.

It is an amenable number.

23505132 is an abundant number, since it is smaller than the sum of its proper divisors (39175444).

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

23505132 is a wasteful number, since it uses less digits than its factorization.

23505132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279837 (or 279835 counting only the distinct ones).

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

The square root of 23505132 is about 4848.2091539042. The cubic root of 23505132 is about 286.4535649581.

Adding to 23505132 its reverse (23150532), we get a palindrome (46655664).

The spelling of 23505132 in words is "twenty-three million, five hundred five thousand, one hundred thirty-two".