127871836 has 12 divisors (see below), whose sum is σ = 223862128. Its totient is φ = 63911232.

The previous prime is 127871833. The next prime is 127871857. The reversal of 127871836 is 638178721.

It is a junction number, because it is equal to n+sod(n) for n = 127871792 and 127871801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127871831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10465 + ... + 19111.

Almost surely, 2^127871836 is an apocalyptic number.

It is an amenable number.

127871836 is a deficient number, since it is larger than the sum of its proper divisors (95990292).

127871836 is a wasteful number, since it uses less digits than its factorization.

127871836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12348 (or 12346 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 127871836 is about 11308.0429783407. The cubic root of 127871836 is about 503.8001590768.

The spelling of 127871836 in words is "one hundred twenty-seven million, eight hundred seventy-one thousand, eight hundred thirty-six".