142207242 has 32 divisors (see below), whose sum is σ = 300499200. Its totient is φ = 44791488.

The previous prime is 142207237. The next prime is 142207253. The reversal of 142207242 is 242702241.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 517 + ... + 16872.

It is an arithmetic number, because the mean of its divisors is an integer number (9390600).

Almost surely, 2^142207242 is an apocalyptic number.

142207242 is an abundant number, since it is smaller than the sum of its proper divisors (158291958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142207242 is a wasteful number, since it uses less digits than its factorization.

142207242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17470.

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 142207242 is about 11925.0677985494. The cubic root of 142207242 is about 521.9640247663.

Adding to 142207242 its reverse (242702241), we get a palindrome (384909483).

The spelling of 142207242 in words is "one hundred forty-two million, two hundred seven thousand, two hundred forty-two".