142220205639 has 48 divisors (see below), whose sum is σ = 225518791680. Its totient is φ = 86029309440.

The previous prime is 142220205613. The next prime is 142220205713. The reversal of 142220205639 is 936502022241.

142220205639 is a `hidden beast` number, since 1 + 422 + 20 + 205 + 6 + 3 + 9 = 666.

142220205639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142220205639 - 2⁷ = 142220205511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142220285639) 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 47 ways as a sum of consecutive naturals, for example, 375904 + ... + 652490.

It is an arithmetic number, because the mean of its divisors is an integer number (4698308160).

Almost surely, 2^142220205639 is an apocalyptic number.

142220205639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

142220205639 is a deficient number, since it is larger than the sum of its proper divisors (83298586041).

142220205639 is a wasteful number, since it uses less digits than its factorization.

142220205639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276740 (or 276737 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 142220205639 in words is "one hundred forty-two billion, two hundred twenty million, two hundred five thousand, six hundred thirty-nine".