164033471 has 4 divisors (see below), whose sum is σ = 187466832. Its totient is φ = 140600112.

The previous prime is 164033449. The next prime is 164033473. The reversal of 164033471 is 174330461.

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-164033471 is a prime.

It is a super-3 number, since 3×164033471³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164033473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11716670 + ... + 11716683.

It is an arithmetic number, because the mean of its divisors is an integer number (46866708).

Almost surely, 2^164033471 is an apocalyptic number.

164033471 is a deficient number, since it is larger than the sum of its proper divisors (23433361).

164033471 is an equidigital number, since it uses as much as digits as its factorization.

164033471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23433360.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 164033471 is about 12807.5552311907. Note that the first 3 decimals coincide. The cubic root of 164033471 is about 547.4076028199.

The spelling of 164033471 in words is "one hundred sixty-four million, thirty-three thousand, four hundred seventy-one".