142120435619 has 8 divisors (see below), whose sum is σ = 143302594512. Its totient is φ = 140942060640.

The previous prime is 142120435601. The next prime is 142120435631. The reversal of 142120435619 is 916534021241.

142120435619 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-142120435619 is a prime.

It is a super-2 number, since 2×142120435619² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142120435669) 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, 870524 + ... + 1020809.

It is an arithmetic number, because the mean of its divisors is an integer number (17912824314).

Almost surely, 2^142120435619 is an apocalyptic number.

142120435619 is a deficient number, since it is larger than the sum of its proper divisors (1182158893).

142120435619 is a wasteful number, since it uses less digits than its factorization.

142120435619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891957.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 142120435619 in words is "one hundred forty-two billion, one hundred twenty million, four hundred thirty-five thousand, six hundred nineteen".