142244454146 has 8 divisors (see below), whose sum is σ = 213369708864. Its totient is φ = 71121217860.

The previous prime is 142244454103. The next prime is 142244454167. The reversal of 142244454146 is 641454442241.

It is a happy number.

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, 314030 + ... + 618953.

It is an arithmetic number, because the mean of its divisors is an integer number (26671213608).

Almost surely, 2^142244454146 is an apocalyptic number.

142244454146 is a deficient number, since it is larger than the sum of its proper divisors (71125254718).

142244454146 is an equidigital number, since it uses as much as digits as its factorization.

142244454146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009216.

The product of its digits is 491520, while the sum is 41.

Adding to 142244454146 its reverse (641454442241), we get a palindrome (783698896387).

The spelling of 142244454146 in words is "one hundred forty-two billion, two hundred forty-four million, four hundred fifty-four thousand, one hundred forty-six".