127164427 has 4 divisors (see below), whose sum is σ = 136946320. Its totient is φ = 117382536.

The previous prime is 127164407. The next prime is 127164431. The reversal of 127164427 is 724461721.

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 127164427 - 2¹¹ = 127162379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127164392 and 127164401.

It is not an unprimeable number, because it can be changed into a prime (127164407) 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 3 ways as a sum of consecutive naturals, for example, 4890927 + ... + 4890952.

It is an arithmetic number, because the mean of its divisors is an integer number (34236580).

Almost surely, 2^127164427 is an apocalyptic number.

127164427 is a deficient number, since it is larger than the sum of its proper divisors (9781893).

127164427 is an equidigital number, since it uses as much as digits as its factorization.

127164427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781892.

The product of its digits is 18816, while the sum is 34.

The square root of 127164427 is about 11276.7205782532. The cubic root of 127164427 is about 502.8694042054.

The spelling of 127164427 in words is "one hundred twenty-seven million, one hundred sixty-four thousand, four hundred twenty-seven".