142220145433 has 8 divisors (see below), whose sum is σ = 144062695296. Its totient is φ = 140386476000.

The previous prime is 142220145421. The next prime is 142220145451. The reversal of 142220145433 is 334541022241.

142220145433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142220145433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142220145395 and 142220145404.

It is not an unprimeable number, because it can be changed into a prime (142220146433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2187868 + ... + 2251933.

It is an arithmetic number, because the mean of its divisors is an integer number (18007836912).

Almost surely, 2^142220145433 is an apocalyptic number.

It is an amenable number.

142220145433 is a deficient number, since it is larger than the sum of its proper divisors (1842549863).

142220145433 is a wasteful number, since it uses less digits than its factorization.

142220145433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440215.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 142220145433 its reverse (334541022241), we get a palindrome (476761167674).

The spelling of 142220145433 in words is "one hundred forty-two billion, two hundred twenty million, one hundred forty-five thousand, four hundred thirty-three".