127268109 has 6 divisors (see below), whose sum is σ = 183831726. Its totient is φ = 84845400.

The previous prime is 127268101. The next prime is 127268111. The reversal of 127268109 is 901862721.

It can be written as a sum of positive squares in only one way, i.e., 116575209 + 10692900 = 10797^2 + 3270^2 .

It is not a de Polignac number, because 127268109 - 2³ = 127268101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127268101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7070442 + ... + 7070459.

It is an arithmetic number, because the mean of its divisors is an integer number (30638621).

Almost surely, 2^127268109 is an apocalyptic number.

It is an amenable number.

127268109 is a deficient number, since it is larger than the sum of its proper divisors (56563617).

127268109 is a wasteful number, since it uses less digits than its factorization.

127268109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14140907 (or 14140904 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 127268109 is about 11281.3168114365. The cubic root of 127268109 is about 503.0060366035.

The spelling of 127268109 in words is "one hundred twenty-seven million, two hundred sixty-eight thousand, one hundred nine".