127616109 has 8 divisors (see below), whose sum is σ = 170207520. Its totient is φ = 85051056.

The previous prime is 127616107. The next prime is 127616117. The reversal of 127616109 is 901616721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127616109 - 2¹ = 127616107 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 127616109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127616107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13219 + ... + 20735.

It is an arithmetic number, because the mean of its divisors is an integer number (21275940).

Almost surely, 2^127616109 is an apocalyptic number.

It is an amenable number.

127616109 is a deficient number, since it is larger than the sum of its proper divisors (42591411).

127616109 is an equidigital number, since it uses as much as digits as its factorization.

127616109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13179.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 127616109 is about 11296.7300135924. The cubic root of 127616109 is about 503.4640900683.

The spelling of 127616109 in words is "one hundred twenty-seven million, six hundred sixteen thousand, one hundred nine".