127931942 has 16 divisors (see below), whose sum is σ = 197179920. Its totient is φ = 62227968.

The previous prime is 127931941. The next prime is 127931971. The reversal of 127931942 is 249139721.

It is a junction number, because it is equal to n+sod(n) for n = 127931896 and 127931905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127931941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5858 + ... + 17034.

It is an arithmetic number, because the mean of its divisors is an integer number (12323745).

Almost surely, 2^127931942 is an apocalyptic number.

127931942 is a deficient number, since it is larger than the sum of its proper divisors (69247978).

127931942 is a wasteful number, since it uses less digits than its factorization.

127931942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11335.

The product of its digits is 27216, while the sum is 38.

The square root of 127931942 is about 11310.7003319865. The cubic root of 127931942 is about 503.8790835947.

The spelling of 127931942 in words is "one hundred twenty-seven million, nine hundred thirty-one thousand, nine hundred forty-two".