142421042 has 8 divisors (see below), whose sum is σ = 216336000. Its totient is φ = 70309044.

The previous prime is 142421021. The next prime is 142421051. The reversal of 142421042 is 240124241.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450542 + ... + 450857.

It is an arithmetic number, because the mean of its divisors is an integer number (27042000).

Almost surely, 2^142421042 is an apocalyptic number.

142421042 is a deficient number, since it is larger than the sum of its proper divisors (73914958).

142421042 is an equidigital number, since it uses as much as digits as its factorization.

142421042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901480.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 142421042 is about 11934.0287413765. The cubic root of 142421042 is about 522.2254742483.

Adding to 142421042 its reverse (240124241), we get a palindrome (382545283).

The spelling of 142421042 in words is "one hundred forty-two million, four hundred twenty-one thousand, forty-two".