142220145032 has 32 divisors (see below), whose sum is σ = 304775929920. Its totient is φ = 60947795520.

The previous prime is 142220145031. The next prime is 142220145043. The reversal of 142220145032 is 230541022241.

It is a super-2 number, since 2×142220145032² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142220144992 and 142220145010.

It is not an unprimeable number, because it can be changed into a prime (142220145031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 984482 + ... + 1119662.

It is an arithmetic number, because the mean of its divisors is an integer number (9524247810).

Almost surely, 2^142220145032 is an apocalyptic number.

It is an amenable number.

142220145032 is an abundant number, since it is smaller than the sum of its proper divisors (162555784888).

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

142220145032 is a wasteful number, since it uses less digits than its factorization.

142220145032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153981 (or 153977 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 142220145032 its reverse (230541022241), we get a palindrome (372761167273).

The spelling of 142220145032 in words is "one hundred forty-two billion, two hundred twenty million, one hundred forty-five thousand, thirty-two".