104142857 has 64 divisors (see below), whose sum is σ = 146227200. Its totient is φ = 71850240.

The previous prime is 104142853. The next prime is 104142881. The reversal of 104142857 is 758241401.

It is a happy number.

It is not a de Polignac number, because 104142857 - 2² = 104142853 is a prime.

104142857 is a modest number, since divided by 142857 gives 104 as remainder.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (104142853) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1554338 + ... + 1554404.

It is an arithmetic number, because the mean of its divisors is an integer number (2284800).

Almost surely, 2^104142857 is an apocalyptic number.

It is an amenable number.

104142857 is a deficient number, since it is larger than the sum of its proper divisors (42084343).

104142857 is a wasteful number, since it uses less digits than its factorization.

104142857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 104142857 is about 10205.0407642498. The cubic root of 104142857 is about 470.4821625021.

The spelling of 104142857 in words is "one hundred four million, one hundred forty-two thousand, eight hundred fifty-seven".