142042246 has 8 divisors (see below), whose sum is σ = 214073784. Its totient is φ = 70684320.

The previous prime is 142042207. The next prime is 142042247. The reversal of 142042246 is 642240241.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 142042246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142042247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167875 + ... + 168718.

It is an arithmetic number, because the mean of its divisors is an integer number (26759223).

Almost surely, 2^142042246 is an apocalyptic number.

142042246 is a deficient number, since it is larger than the sum of its proper divisors (72031538).

142042246 is a wasteful number, since it uses less digits than its factorization.

142042246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336806.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 142042246 is about 11918.1477587753. The cubic root of 142042246 is about 521.7620769982.

Adding to 142042246 its reverse (642240241), we get a palindrome (784282487).

The spelling of 142042246 in words is "one hundred forty-two million, forty-two thousand, two hundred forty-six".