142855827 has 8 divisors (see below), whose sum is σ = 197042640. Its totient is φ = 91953120.

The previous prime is 142855787. The next prime is 142855831. The reversal of 142855827 is 728558241.

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

It is not a de Polignac number, because 142855827 - 2¹¹ = 142853779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142855837) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 820924 + ... + 821097.

It is an arithmetic number, because the mean of its divisors is an integer number (24630330).

Almost surely, 2^142855827 is an apocalyptic number.

142855827 is a deficient number, since it is larger than the sum of its proper divisors (54186813).

142855827 is a wasteful number, since it uses less digits than its factorization.

142855827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642053.

The product of its digits is 179200, while the sum is 42.

The square root of 142855827 is about 11952.2310469636. The cubic root of 142855827 is about 522.7563535286.

The spelling of 142855827 in words is "one hundred forty-two million, eight hundred fifty-five thousand, eight hundred twenty-seven".