164421127 has 8 divisors (see below), whose sum is σ = 187484976. Its totient is φ = 142845312.

The previous prime is 164421119. The next prime is 164421137. The reversal of 164421127 is 721124461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164421127 - 2³ = 164421119 is a prime.

It is a super-3 number, since 3×164421127³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164421095 and 164421104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164421107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371773 + ... + 372214.

It is an arithmetic number, because the mean of its divisors is an integer number (23435622).

Almost surely, 2^164421127 is an apocalyptic number.

164421127 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

164421127 is a deficient number, since it is larger than the sum of its proper divisors (23063849).

164421127 is a wasteful number, since it uses less digits than its factorization.

164421127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744017.

The product of its digits is 2688, while the sum is 28.

The square root of 164421127 is about 12822.6801800560. The cubic root of 164421127 is about 547.8384882416.

Adding to 164421127 its reverse (721124461), we get a palindrome (885545588).

The spelling of 164421127 in words is "one hundred sixty-four million, four hundred twenty-one thousand, one hundred twenty-seven".