164032271 has 4 divisors (see below), whose sum is σ = 176650152. Its totient is φ = 151414392.

The previous prime is 164032237. The next prime is 164032273. The reversal of 164032271 is 172230461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164032271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164032271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164032273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6308921 + ... + 6308946.

It is an arithmetic number, because the mean of its divisors is an integer number (44162538).

Almost surely, 2^164032271 is an apocalyptic number.

164032271 is a deficient number, since it is larger than the sum of its proper divisors (12617881).

164032271 is a wasteful number, since it uses less digits than its factorization.

164032271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12617880.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 164032271 is about 12807.5083837568. The cubic root of 164032271 is about 547.4062679486.

The spelling of 164032271 in words is "one hundred sixty-four million, thirty-two thousand, two hundred seventy-one".