142254216 has 144 divisors (see below), whose sum is σ = 438934860. Its totient is φ = 41368320.

The previous prime is 142254187. The next prime is 142254221. The reversal of 142254216 is 612452241.

142254216 is a `hidden beast` number, since 14 + 225 + 421 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 102941316 + 39312900 = 10146^2 + 6270^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142254216.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 337686 + ... + 338106.

Almost surely, 2^142254216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142254216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219467430).

142254216 is an abundant number, since it is smaller than the sum of its proper divisors (296680644).

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

142254216 is a wasteful number, since it uses less digits than its factorization.

142254216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 458 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 142254216 is about 11927.0371844813. The cubic root of 142254216 is about 522.0214902854.

The spelling of 142254216 in words is "one hundred forty-two million, two hundred fifty-four thousand, two hundred sixteen".