142245242 has 8 divisors (see below), whose sum is σ = 219134676. Its totient is φ = 69200352.

The previous prime is 142245227. The next prime is 142245251. The reversal of 142245242 is 242542241.

It can be written as a sum of positive squares in 2 ways, for example, as 141871921 + 373321 = 11911^2 + 611^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 961043 + ... + 961190.

Almost surely, 2^142245242 is an apocalyptic number.

142245242 is a deficient number, since it is larger than the sum of its proper divisors (76889434).

142245242 is a wasteful number, since it uses less digits than its factorization.

142245242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922272.

The product of its digits is 5120, while the sum is 26.

The square root of 142245242 is about 11926.6609744723. The cubic root of 142245242 is about 522.0105129438.

Adding to 142245242 its reverse (242542241), we get a palindrome (384787483).

It can be divided in two parts, 1422 and 45242, that added together give a palindrome (46664).

The spelling of 142245242 in words is "one hundred forty-two million, two hundred forty-five thousand, two hundred forty-two".