164561327 has 8 divisors (see below), whose sum is σ = 188159616. Its totient is φ = 140985432.

The previous prime is 164561321. The next prime is 164561339. The reversal of 164561327 is 723165461.

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

It is not a de Polignac number, because 164561327 - 2⁶ = 164561263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164561321) 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, 15428 + ... + 23814.

It is an arithmetic number, because the mean of its divisors is an integer number (23519952).

Almost surely, 2^164561327 is an apocalyptic number.

164561327 is a deficient number, since it is larger than the sum of its proper divisors (23598289).

164561327 is an equidigital number, since it uses as much as digits as its factorization.

164561327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11197.

The product of its digits is 30240, while the sum is 35.

The square root of 164561327 is about 12828.1458909696. The cubic root of 164561327 is about 547.9941558597.

The spelling of 164561327 in words is "one hundred sixty-four million, five hundred sixty-one thousand, three hundred twenty-seven".