142216 has 16 divisors (see below), whose sum is σ = 276300. Its totient is φ = 68544.

The previous prime is 142211. The next prime is 142217. The reversal of 142216 is 612241.

142216 = T₃₉ + T₄₀ + ... + T₉₆.

It can be written as a sum of positive squares in 2 ways, for example, as 125316 + 16900 = 354^2 + 130^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142216.

It is not an unprimeable number, because it can be changed into a prime (142211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75 + ... + 538.

2¹⁴²²¹⁶ is an apocalyptic number.

It is an amenable number.

142216 is a deficient number, since it is larger than the sum of its proper divisors (134084).

142216 is a wasteful number, since it uses less digits than its factorization.

142216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 644 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 142216 is about 377.1153669635. The cubic root of 142216 is about 52.1974739802.

Adding to 142216 its reverse (612241), we get a palindrome (754457).

The spelling of 142216 in words is "one hundred forty-two thousand, two hundred sixteen".