127116169 has 4 divisors (see below), whose sum is σ = 127774996. Its totient is φ = 126457344.

The previous prime is 127116167. The next prime is 127116181. The reversal of 127116169 is 961611721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13053769 + 114062400 = 3613^2 + 10680^2 .

It is a cyclic number.

It is not a de Polignac number, because 127116169 - 2¹ = 127116167 is a prime.

It is a super-2 number, since 2×127116169² = 32317040842473122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127116161) 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, 329124 + ... + 329509.

It is an arithmetic number, because the mean of its divisors is an integer number (31943749).

Almost surely, 2^127116169 is an apocalyptic number.

It is an amenable number.

127116169 is a deficient number, since it is larger than the sum of its proper divisors (658827).

127116169 is an equidigital number, since it uses as much as digits as its factorization.

127116169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658826.

The product of its digits is 4536, while the sum is 34.

The square root of 127116169 is about 11274.5806573903. The cubic root of 127116169 is about 502.8057843638.

The spelling of 127116169 in words is "one hundred twenty-seven million, one hundred sixteen thousand, one hundred sixty-nine".