23845142 has 4 divisors (see below), whose sum is σ = 35767716. Its totient is φ = 11922570.

The previous prime is 23845141. The next prime is 23845187. The reversal of 23845142 is 24154832.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23845141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5961284 + ... + 5961287.

It is an arithmetic number, because the mean of its divisors is an integer number (8941929).

Almost surely, 2^23845142 is an apocalyptic number.

23845142 is a deficient number, since it is larger than the sum of its proper divisors (11922574).

23845142 is a wasteful number, since it uses less digits than its factorization.

23845142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11922573.

The product of its digits is 7680, while the sum is 29.

The square root of 23845142 is about 4883.1487792202. The cubic root of 23845142 is about 287.8281752208.

Adding to 23845142 its reverse (24154832), we get a palindrome (47999974).

The spelling of 23845142 in words is "twenty-three million, eight hundred forty-five thousand, one hundred forty-two".