142304786 has 8 divisors (see below), whose sum is σ = 229877004. Its totient is φ = 65679120.

The previous prime is 142304779. The next prime is 142304791. The reversal of 142304786 is 687403241.

It can be written as a sum of positive squares in 2 ways, for example, as 141967225 + 337561 = 11915^2 + 581^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2736605 + ... + 2736656.

Almost surely, 2^142304786 is an apocalyptic number.

142304786 is a deficient number, since it is larger than the sum of its proper divisors (87572218).

142304786 is a wasteful number, since it uses less digits than its factorization.

142304786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473276.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 142304786 is about 11929.1569693755. The cubic root of 142304786 is about 522.0833408230.

The spelling of 142304786 in words is "one hundred forty-two million, three hundred four thousand, seven hundred eighty-six".