142724174 has 4 divisors (see below), whose sum is σ = 214086264. Its totient is φ = 71362086.

The previous prime is 142724173. The next prime is 142724189. The reversal of 142724174 is 471427241.

142724174 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 142724174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142724171) 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 as a sum of consecutive naturals, namely, 35681042 + ... + 35681045.

It is an arithmetic number, because the mean of its divisors is an integer number (53521566).

Almost surely, 2^142724174 is an apocalyptic number.

142724174 is a deficient number, since it is larger than the sum of its proper divisors (71362090).

142724174 is an equidigital number, since it uses as much as digits as its factorization.

142724174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71362089.

The product of its digits is 12544, while the sum is 32.

The square root of 142724174 is about 11946.7223119984. The cubic root of 142724174 is about 522.5957169944.

The spelling of 142724174 in words is "one hundred forty-two million, seven hundred twenty-four thousand, one hundred seventy-four".