142718306 has 8 divisors (see below), whose sum is σ = 214612524. Its totient is φ = 71180800.

The previous prime is 142718269. The next prime is 142718321. The reversal of 142718306 is 603817241.

It can be written as a sum of positive squares in 2 ways, for example, as 135932281 + 6786025 = 11659^2 + 2605^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 88175 + ... + 89778.

Almost surely, 2^142718306 is an apocalyptic number.

142718306 is a deficient number, since it is larger than the sum of its proper divisors (71894218).

142718306 is a wasteful number, since it uses less digits than its factorization.

142718306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178356.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 142718306 is about 11946.4767191001. The cubic root of 142718306 is about 522.5885548494.

The spelling of 142718306 in words is "one hundred forty-two million, seven hundred eighteen thousand, three hundred six".