23205142 has 8 divisors (see below), whose sum is σ = 35748576. Its totient is φ = 11288952.

The previous prime is 23205109. The next prime is 23205181. The reversal of 23205142 is 24150232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156718 + ... + 156865.

It is an arithmetic number, because the mean of its divisors is an integer number (4468572).

Almost surely, 2^23205142 is an apocalyptic number.

23205142 is a deficient number, since it is larger than the sum of its proper divisors (12543434).

23205142 is a wasteful number, since it uses less digits than its factorization.

23205142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313622.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23205142 is about 4817.1715767658. The cubic root of 23205142 is about 285.2296988888.

Adding to 23205142 its reverse (24150232), we get a palindrome (47355374).

The spelling of 23205142 in words is "twenty-three million, two hundred five thousand, one hundred forty-two".