142857285730 has 8 divisors (see below), whose sum is σ = 257143114332. Its totient is φ = 57142914288.

The previous prime is 142857285679. The next prime is 142857285821. The reversal of 142857285730 is 37582758241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 122075468449 + 20781817281 = 349393^2 + 144159^2 .

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

It is a super-2 number, since 2×142857285730² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7142864277 + ... + 7142864296.

Almost surely, 2^142857285730 is an apocalyptic number.

142857285730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142857285730 is a deficient number, since it is larger than the sum of its proper divisors (114285828602).

142857285730 is a wasteful number, since it uses less digits than its factorization.

142857285730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14285728580.

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 142857285730 in words is "one hundred forty-two billion, eight hundred fifty-seven million, two hundred eighty-five thousand, seven hundred thirty".