142310242 has 12 divisors (see below), whose sum is σ = 217155366. Its totient is φ = 69945680.

The previous prime is 142310237. The next prime is 142310297. The reversal of 142310242 is 242013241.

It can be written as a sum of positive squares in only one way, i.e., 99420841 + 42889401 = 9971^2 + 6549^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3259 + ... + 17182.

Almost surely, 2^142310242 is an apocalyptic number.

142310242 is a deficient number, since it is larger than the sum of its proper divisors (74845124).

142310242 is an equidigital number, since it uses as much as digits as its factorization.

142310242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20561 (or 20502 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142310242 is about 11929.3856505689. The cubic root of 142310242 is about 522.0900130051.

Adding to 142310242 its reverse (242013241), we get a palindrome (384323483).

The spelling of 142310242 in words is "one hundred forty-two million, three hundred ten thousand, two hundred forty-two".