142724152 has 8 divisors (see below), whose sum is σ = 267607800. Its totient is φ = 71362072.

The previous prime is 142724149. The next prime is 142724159. The reversal of 142724152 is 251427241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 142724152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142724159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8920252 + ... + 8920267.

It is an arithmetic number, because the mean of its divisors is an integer number (33450975).

Almost surely, 2^142724152 is an apocalyptic number.

It is an amenable number.

142724152 is a deficient number, since it is larger than the sum of its proper divisors (124883648).

142724152 is a wasteful number, since it uses less digits than its factorization.

142724152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17840525 (or 17840521 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 142724152 is about 11946.7213912437. The cubic root of 142724152 is about 522.5956901428.

The spelling of 142724152 in words is "one hundred forty-two million, seven hundred twenty-four thousand, one hundred fifty-two".