161127 has 6 divisors (see below), whose sum is σ = 232752. Its totient is φ = 107412.

The previous prime is 161123. The next prime is 161137. The reversal of 161127 is 721161.

It is not a de Polignac number, because 161127 - 2² = 161123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161123) 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 5 ways as a sum of consecutive naturals, for example, 8943 + ... + 8960.

It is an arithmetic number, because the mean of its divisors is an integer number (38792).

2¹⁶¹¹²⁷ is an apocalyptic number.

161127 is a deficient number, since it is larger than the sum of its proper divisors (71625).

161127 is a wasteful number, since it uses less digits than its factorization.

161127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17909 (or 17906 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 161127 is about 401.4062779778. The cubic root of 161127 is about 54.4155187487.

Adding to 161127 its reverse (721161), we get a palindrome (882288).

The spelling of 161127 in words is "one hundred sixty-one thousand, one hundred twenty-seven".