23545136 has 40 divisors (see below), whose sum is σ = 48813840. Its totient is φ = 10962944.

The previous prime is 23545103. The next prime is 23545139. The reversal of 23545136 is 63154532.

It is a junction number, because it is equal to n+sod(n) for n = 23545099 and 23545108.

It is not an unprimeable number, because it can be changed into a prime (23545139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28700 + ... + 29508.

It is an arithmetic number, because the mean of its divisors is an integer number (1220346).

Almost surely, 2^23545136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23545136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24406920).

23545136 is an abundant number, since it is smaller than the sum of its proper divisors (25268704).

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

23545136 is a wasteful number, since it uses less digits than its factorization.

23545136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 935 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 23545136 is about 4852.3330471022. Note that the first 3 decimals coincide. The cubic root of 23545136 is about 286.6159804623.

Adding to 23545136 its reverse (63154532), we get a palindrome (86699668).

The spelling of 23545136 in words is "twenty-three million, five hundred forty-five thousand, one hundred thirty-six".