127107172 has 6 divisors (see below), whose sum is σ = 222437558. Its totient is φ = 63553584.

The previous prime is 127107163. The next prime is 127107191. The reversal of 127107172 is 271701721.

It can be written as a sum of positive squares in only one way, i.e., 127103076 + 4096 = 11274^2 + 64^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 127107172.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 15888393 + ... + 15888400.

Almost surely, 2^127107172 is an apocalyptic number.

It is an amenable number.

127107172 is a deficient number, since it is larger than the sum of its proper divisors (95330386).

127107172 is a wasteful number, since it uses less digits than its factorization.

127107172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31776797 (or 31776795 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 28.

The square root of 127107172 is about 11274.1816554462. The cubic root of 127107172 is about 502.7939215918.

Adding to 127107172 its reverse (271701721), we get a palindrome (398808893).

The spelling of 127107172 in words is "one hundred twenty-seven million, one hundred seven thousand, one hundred seventy-two".