23143236 has 24 divisors (see below), whose sum is σ = 55743744. Its totient is φ = 7465440.

The previous prime is 23143199. The next prime is 23143259. The reversal of 23143236 is 63234132.

It is a super-5 number, since 5×23143236⁵ (a number of 38 digits) contains 55555 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30735 + ... + 31478.

It is an arithmetic number, because the mean of its divisors is an integer number (2322656).

Almost surely, 2^23143236 is an apocalyptic number.

It is an amenable number.

23143236 is an abundant number, since it is smaller than the sum of its proper divisors (32600508).

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

23143236 is a wasteful number, since it uses less digits than its factorization.

23143236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62251 (or 62249 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The square root of 23143236 is about 4810.7417307521. The cubic root of 23143236 is about 284.9758305142.

Adding to 23143236 its reverse (63234132), we get a palindrome (86377368).

The spelling of 23143236 in words is "twenty-three million, one hundred forty-three thousand, two hundred thirty-six".