127279 has 4 divisors (see below), whose sum is σ = 134784. Its totient is φ = 119776.

The previous prime is 127277. The next prime is 127289. The reversal of 127279 is 972721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127279 - 2¹ = 127277 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127271) 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 3 ways as a sum of consecutive naturals, for example, 3727 + ... + 3760.

It is an arithmetic number, because the mean of its divisors is an integer number (33696).

2¹²⁷²⁷⁹ is an apocalyptic number.

127279 is a deficient number, since it is larger than the sum of its proper divisors (7505).

127279 is an equidigital number, since it uses as much as digits as its factorization.

127279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7504.

The product of its digits is 1764, while the sum is 28.

The square root of 127279 is about 356.7618253121. The cubic root of 127279 is about 50.3020384483.

It can be divided in two parts, 127 and 279, that added together give a triangular number (406 = T₂₈).

The spelling of 127279 in words is "one hundred twenty-seven thousand, two hundred seventy-nine".