142547122 has 8 divisors (see below), whose sum is σ = 221193900. Its totient is φ = 68815824.

The previous prime is 142547113. The next prime is 142547129. The reversal of 142547122 is 221745241.

142547122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 140209281 + 2337841 = 11841^2 + 1529^2 .

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

It is not an unprimeable number, because it can be changed into a prime (142547129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228797 + ... + 1228912.

Almost surely, 2^142547122 is an apocalyptic number.

142547122 is a deficient number, since it is larger than the sum of its proper divisors (78646778).

142547122 is a wasteful number, since it uses less digits than its factorization.

142547122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457740.

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

The square root of 142547122 is about 11939.3099465589. The cubic root of 142547122 is about 522.3795309973.

The spelling of 142547122 in words is "one hundred forty-two million, five hundred forty-seven thousand, one hundred twenty-two".