242142106 has 4 divisors (see below), whose sum is σ = 363213162. Its totient is φ = 121071052.

The previous prime is 242142079. The next prime is 242142113. The reversal of 242142106 is 601241242.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 175801081 + 66341025 = 13259^2 + 8145^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60535525 + ... + 60535528.

Almost surely, 2^242142106 is an apocalyptic number.

242142106 is a deficient number, since it is larger than the sum of its proper divisors (121071056).

242142106 is a wasteful number, since it uses less digits than its factorization.

242142106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121071055.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 242142106 is about 15560.9159756102. The cubic root of 242142106 is about 623.2899224028.

Adding to 242142106 its reverse (601241242), we get a palindrome (843383348).

The spelling of 242142106 in words is "two hundred forty-two million, one hundred forty-two thousand, one hundred six".