127231 has 4 divisors (see below), whose sum is σ = 137032. Its totient is φ = 117432.

The previous prime is 127219. The next prime is 127241. The reversal of 127231 is 132721.

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 127231 - 2⁷ = 127103 is a prime.

It is a super-2 number, since 2×127231² = 32375454722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4881 + ... + 4906.

It is an arithmetic number, because the mean of its divisors is an integer number (34258).

2¹²⁷²³¹ is an apocalyptic number.

127231 is a deficient number, since it is larger than the sum of its proper divisors (9801).

127231 is an equidigital number, since it uses as much as digits as its factorization.

127231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9800.

The product of its digits is 84, while the sum is 16.

The square root of 127231 is about 356.6945471969. The cubic root of 127231 is about 50.2957142801.

Adding to 127231 its reverse (132721), we get a palindrome (259952).

The spelling of 127231 in words is "one hundred twenty-seven thousand, two hundred thirty-one".