142120413444 has 24 divisors (see below), whose sum is σ = 336284923968. Its totient is φ = 46706238880.

The previous prime is 142120413439. The next prime is 142120413469. The reversal of 142120413444 is 444314021241.

It is a happy number.

It is a super-2 number, since 2×142120413444² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 83403147 + ... + 83404850.

It is an arithmetic number, because the mean of its divisors is an integer number (14011871832).

Almost surely, 2^142120413444 is an apocalyptic number.

It is an amenable number.

142120413444 is an abundant number, since it is smaller than the sum of its proper divisors (194164510524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142120413444 is a wasteful number, since it uses less digits than its factorization.

142120413444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166808075 (or 166808073 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 142120413444 its reverse (444314021241), we get a palindrome (586434434685).

The spelling of 142120413444 in words is "one hundred forty-two billion, one hundred twenty million, four hundred thirteen thousand, four hundred forty-four".