23143055 has 16 divisors (see below), whose sum is σ = 30011520. Its totient is φ = 17031168.

The previous prime is 23143051. The next prime is 23143067. The reversal of 23143055 is 55034132.

It is a cyclic number.

It is not a de Polignac number, because 23143055 - 2² = 23143051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23143055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143051) 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 15 ways as a sum of consecutive naturals, for example, 29711 + ... + 30479.

It is an arithmetic number, because the mean of its divisors is an integer number (1875720).

Almost surely, 2^23143055 is an apocalyptic number.

23143055 is a deficient number, since it is larger than the sum of its proper divisors (6868465).

23143055 is a wasteful number, since it uses less digits than its factorization.

23143055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 23143055 is about 4810.7229186475. The cubic root of 23143055 is about 284.9750875936.

Adding to 23143055 its reverse (55034132), we get a palindrome (78177187).

The spelling of 23143055 in words is "twenty-three million, one hundred forty-three thousand, fifty-five".