142276224 has 32 divisors (see below), whose sum is σ = 377922240. Its totient is φ = 47425280.

The previous prime is 142276171. The next prime is 142276249. The reversal of 142276224 is 422672241.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 142276191 and 142276200.

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 3 ways as a sum of consecutive naturals, for example, 184872 + ... + 185639.

It is an arithmetic number, because the mean of its divisors is an integer number (11810070).

Almost surely, 2^142276224 is an apocalyptic number.

It is an amenable number.

142276224 is an abundant number, since it is smaller than the sum of its proper divisors (235646016).

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

142276224 is an equidigital number, since it uses as much as digits as its factorization.

142276224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370528 (or 370516 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 142276224 is about 11927.9597584834. The cubic root of 142276224 is about 522.0484093623.

The spelling of 142276224 in words is "one hundred forty-two million, two hundred seventy-six thousand, two hundred twenty-four".