127973913 has 16 divisors (see below), whose sum is σ = 173947200. Its totient is φ = 83666880.

The previous prime is 127973899. The next prime is 127973929. The reversal of 127973913 is 319379721.

It is not a de Polignac number, because 127973913 - 2⁹ = 127973401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (127973933) 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 15 ways as a sum of consecutive naturals, for example, 75843 + ... + 77511.

It is an arithmetic number, because the mean of its divisors is an integer number (10871700).

Almost surely, 2^127973913 is an apocalyptic number.

It is an amenable number.

127973913 is a deficient number, since it is larger than the sum of its proper divisors (45973287).

127973913 is a wasteful number, since it uses less digits than its factorization.

127973913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152.

The product of its digits is 71442, while the sum is 42.

The square root of 127973913 is about 11312.5555468250. Note that the first 4 decimals coincide. The cubic root of 127973913 is about 503.9341805897.

The spelling of 127973913 in words is "one hundred twenty-seven million, nine hundred seventy-three thousand, nine hundred thirteen".