23143506 has 16 divisors (see below), whose sum is σ = 46375200. Its totient is φ = 7699808.

The previous prime is 23143493. The next prime is 23143513. The reversal of 23143506 is 60534132.

It is a happy number.

It is a Curzon number.

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, 25 + ... + 6803.

It is an arithmetic number, because the mean of its divisors is an integer number (2898450).

Almost surely, 2^23143506 is an apocalyptic number.

23143506 is an abundant number, since it is smaller than the sum of its proper divisors (23231694).

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

23143506 is a wasteful number, since it uses less digits than its factorization.

23143506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7353.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 23143506 is about 4810.7697928710. The cubic root of 23143506 is about 284.9769387311.

Adding to 23143506 its reverse (60534132), we get a palindrome (83677638).

The spelling of 23143506 in words is "twenty-three million, one hundred forty-three thousand, five hundred six".