127915 has 4 divisors (see below), whose sum is σ = 153504. Its totient is φ = 102328.

The previous prime is 127913. The next prime is 127921. The reversal of 127915 is 519721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 519721 = 139 ⋅3739.

It is a cyclic number.

It is not a de Polignac number, because 127915 - 2¹ = 127913 is a prime.

It is a Duffinian number.

127915 is a lucky number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 127915.

It is not an unprimeable number, because it can be changed into a prime (127913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12787 + ... + 12796.

It is an arithmetic number, because the mean of its divisors is an integer number (38376).

2¹²⁷⁹¹⁵ is an apocalyptic number.

127915 is a deficient number, since it is larger than the sum of its proper divisors (25589).

127915 is an equidigital number, since it uses as much as digits as its factorization.

127915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25588.

The product of its digits is 630, while the sum is 25.

The square root of 127915 is about 357.6520655609. The cubic root of 127915 is about 50.3856839746.

The spelling of 127915 in words is "one hundred twenty-seven thousand, nine hundred fifteen".