127429 has 4 divisors (see below), whose sum is σ = 129580. Its totient is φ = 125280.

The previous prime is 127423. The next prime is 127447. The reversal of 127429 is 924721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 924721 = 7 ⋅132103.

It can be written as a sum of positive squares in 2 ways, for example, as 52900 + 74529 = 230^2 + 273^2 .

It is a cyclic number.

It is not a de Polignac number, because 127429 - 2⁷ = 127301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127423) 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, 984 + ... + 1105.

It is an arithmetic number, because the mean of its divisors is an integer number (32395).

2¹²⁷⁴²⁹ is an apocalyptic number.

It is an amenable number.

127429 is a deficient number, since it is larger than the sum of its proper divisors (2151).

127429 is an equidigital number, since it uses as much as digits as its factorization.

127429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150.

The product of its digits is 1008, while the sum is 25.

The square root of 127429 is about 356.9719876965. The cubic root of 127429 is about 50.3217912319.

The spelling of 127429 in words is "one hundred twenty-seven thousand, four hundred twenty-nine".