164227361 has 4 divisors (see below), whose sum is σ = 173887812. Its totient is φ = 154566912.

The previous prime is 164227351. The next prime is 164227381. The reversal of 164227361 is 163722461.

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 127260961 + 36966400 = 11281^2 + 6080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164227361 is a prime.

It is a super-2 number, since 2×164227361² = 53941252202048642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164227351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4830200 + ... + 4830233.

It is an arithmetic number, because the mean of its divisors is an integer number (43471953).

Almost surely, 2^164227361 is an apocalyptic number.

It is an amenable number.

164227361 is a deficient number, since it is larger than the sum of its proper divisors (9660451).

164227361 is an equidigital number, since it uses as much as digits as its factorization.

164227361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660450.

The product of its digits is 12096, while the sum is 32.

The square root of 164227361 is about 12815.1223560292. The cubic root of 164227361 is about 547.6231992029.

The spelling of 164227361 in words is "one hundred sixty-four million, two hundred twenty-seven thousand, three hundred sixty-one".