142865216 has 28 divisors (see below), whose sum is σ = 305307492. Its totient is φ = 65937408.

The previous prime is 142865209. The next prime is 142865231. The reversal of 142865216 is 612568241.

It can be written as a sum of positive squares in 2 ways, for example, as 39639616 + 103225600 = 6296^2 + 10160^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85025 + ... + 86688.

It is an arithmetic number, because the mean of its divisors is an integer number (10903839).

Almost surely, 2^142865216 is an apocalyptic number.

142865216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142865216 is an abundant number, since it is smaller than the sum of its proper divisors (162442276).

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

142865216 is a wasteful number, since it uses less digits than its factorization.

142865216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171738 (or 171728 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 142865216 is about 11952.6238123686. The cubic root of 142865216 is about 522.7678057551.

The spelling of 142865216 in words is "one hundred forty-two million, eight hundred sixty-five thousand, two hundred sixteen".