871515142 has 16 divisors (see below), whose sum is σ = 1408080960. Its totient is φ = 403221672.

The previous prime is 871515083. The next prime is 871515157. The reversal of 871515142 is 241515178.

It is a junction number, because it is equal to n+sod(n) for n = 871515098 and 871515107.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 265048 + ... + 268315.

It is an arithmetic number, because the mean of its divisors is an integer number (88005060).

Almost surely, 2^871515142 is an apocalyptic number.

871515142 is a deficient number, since it is larger than the sum of its proper divisors (536565818).

871515142 is a wasteful number, since it uses less digits than its factorization.

871515142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533427.

The product of its digits is 11200, while the sum is 34.

The square root of 871515142 is about 29521.4352970854. The cubic root of 871515142 is about 955.1941317468.

The spelling of 871515142 in words is "eight hundred seventy-one million, five hundred fifteen thousand, one hundred forty-two".