127715 has 16 divisors (see below), whose sum is σ = 181440. Its totient is φ = 84480.

The previous prime is 127711. The next prime is 127717. The reversal of 127715 is 517721.

It is a happy number.

It is not a de Polignac number, because 127715 - 2² = 127711 is a prime.

It is a super-2 number, since 2×127715² = 32622242450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127711) 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 15 ways as a sum of consecutive naturals, for example, 1391 + ... + 1479.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

2¹²⁷⁷¹⁵ is an apocalyptic number.

127715 is a deficient number, since it is larger than the sum of its proper divisors (53725).

127715 is an equidigital number, since it uses as much as digits as its factorization.

127715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142.

The product of its digits is 490, while the sum is 23.

The square root of 127715 is about 357.3723548346. The cubic root of 127715 is about 50.3594102945.

The spelling of 127715 in words is "one hundred twenty-seven thousand, seven hundred fifteen".