142424242 has 8 divisors (see below), whose sum is σ = 218847132. Its totient is φ = 69475200.

The previous prime is 142424189. The next prime is 142424263. The reversal of 142424242 is 242424241.

142424242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 142301041 + 123201 = 11929^2 + 351^2 .

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

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868359 + ... + 868522.

Almost surely, 2^142424242 is an apocalyptic number.

142424242 is a deficient number, since it is larger than the sum of its proper divisors (76422890).

142424242 is a wasteful number, since it uses less digits than its factorization.

142424242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736924.

The product of its digits is 4096, while the sum is 25.

The square root of 142424242 is about 11934.1628110228. The cubic root of 142424242 is about 522.2293854424.

Adding to 142424242 its reverse (242424241), we get a palindrome (384848483).

Subtracting 142424242 from its reverse (242424241), we obtain a palindrome (99999999).

The spelling of 142424242 in words is "one hundred forty-two million, four hundred twenty-four thousand, two hundred forty-two".