23143027 has 4 divisors (see below), whose sum is σ = 23281776. Its totient is φ = 23004280.

The previous prime is 23143013. The next prime is 23143031. The reversal of 23143027 is 72034132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23143027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23142989 and 23143007.

It is not an unprimeable number, because it can be changed into a prime (23143067) 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 3 ways as a sum of consecutive naturals, for example, 69124 + ... + 69457.

It is an arithmetic number, because the mean of its divisors is an integer number (5820444).

Almost surely, 2^23143027 is an apocalyptic number.

23143027 is a deficient number, since it is larger than the sum of its proper divisors (138749).

23143027 is a wasteful number, since it uses less digits than its factorization.

23143027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138748.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 23143027 is about 4810.7200084811. The cubic root of 23143027 is about 284.9749726663.

Adding to 23143027 its reverse (72034132), we get a palindrome (95177159).

The spelling of 23143027 in words is "twenty-three million, one hundred forty-three thousand, twenty-seven".