23005142 has 4 divisors (see below), whose sum is σ = 34507716. Its totient is φ = 11502570.

The previous prime is 23005123. The next prime is 23005163. The reversal of 23005142 is 24150032.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23005142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5751284 + ... + 5751287.

It is an arithmetic number, because the mean of its divisors is an integer number (8626929).

Almost surely, 2^23005142 is an apocalyptic number.

23005142 is a deficient number, since it is larger than the sum of its proper divisors (11502574).

23005142 is a wasteful number, since it uses less digits than its factorization.

23005142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502573.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 23005142 is about 4796.3675839118. The cubic root of 23005142 is about 284.4078893973.

Adding to 23005142 its reverse (24150032), we get a palindrome (47155174).

The spelling of 23005142 in words is "twenty-three million, five thousand, one hundred forty-two".