164024197 has 4 divisors (see below), whose sum is σ = 164064076. Its totient is φ = 163984320.

The previous prime is 164024171. The next prime is 164024221. The reversal of 164024197 is 791420461.

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

It can be written as a sum of positive squares in 2 ways, for example, as 89132481 + 74891716 = 9441^2 + 8654^2 .

It is a cyclic number.

It is not a de Polignac number, because 164024197 - 2¹¹ = 164022149 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 (164024137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12954 + ... + 22267.

It is an arithmetic number, because the mean of its divisors is an integer number (41016019).

Almost surely, 2^164024197 is an apocalyptic number.

It is an amenable number.

164024197 is a deficient number, since it is larger than the sum of its proper divisors (39879).

164024197 is an equidigital number, since it uses as much as digits as its factorization.

164024197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39878.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 164024197 is about 12807.1931741502. The cubic root of 164024197 is about 547.3972863202.

The spelling of 164024197 in words is "one hundred sixty-four million, twenty-four thousand, one hundred ninety-seven".