127745 has 8 divisors (see below), whose sum is σ = 158760. Its totient is φ = 98560.

The previous prime is 127739. The next prime is 127747. The reversal of 127745 is 547721.

It can be written as a sum of positive squares in 4 ways, for example, as 3136 + 124609 = 56^2 + 353^2 .

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

It is not a de Polignac number, because 127745 - 2⁶ = 127681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127747) 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, 296 + ... + 585.

It is an arithmetic number, because the mean of its divisors is an integer number (19845).

2¹²⁷⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

127745 is a deficient number, since it is larger than the sum of its proper divisors (31015).

127745 is an equidigital number, since it uses as much as digits as its factorization.

127745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915.

The product of its digits is 1960, while the sum is 26.

The square root of 127745 is about 357.4143253984. The cubic root of 127745 is about 50.3633530943.

The spelling of 127745 in words is "one hundred twenty-seven thousand, seven hundred forty-five".