142007284 has 12 divisors (see below), whose sum is σ = 249399108. Its totient is φ = 70750400.

The previous prime is 142007279. The next prime is 142007291. The reversal of 142007284 is 482700241.

It can be written as a sum of positive squares in 2 ways, for example, as 40602384 + 101404900 = 6372^2 + 10070^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 62047 + ... + 64294.

It is an arithmetic number, because the mean of its divisors is an integer number (20783259).

Almost surely, 2^142007284 is an apocalyptic number.

It is an amenable number.

142007284 is a deficient number, since it is larger than the sum of its proper divisors (107391824).

142007284 is a wasteful number, since it uses less digits than its factorization.

142007284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126626 (or 126624 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 142007284 is about 11916.6809137444. The cubic root of 142007284 is about 521.7192649872.

The spelling of 142007284 in words is "one hundred forty-two million, seven thousand, two hundred eighty-four".