164312201 has 2 divisors, whose sum is σ = 164312202. Its totient is φ = 164312200.

The previous prime is 164312189. The next prime is 164312251. The reversal of 164312201 is 102213461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114468601 + 49843600 = 10699^2 + 7060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164312201 is a prime.

It is not a weakly prime, because it can be changed into another prime (164312251) 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 as a sum of consecutive naturals, namely, 82156100 + 82156101.

It is an arithmetic number, because the mean of its divisors is an integer number (82156101).

Almost surely, 2^164312201 is an apocalyptic number.

It is an amenable number.

164312201 is a deficient number, since it is larger than the sum of its proper divisors (1).

164312201 is an equidigital number, since it uses as much as digits as its factorization.

164312201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 164312201 is about 12818.4320804067. The cubic root of 164312201 is about 547.7174838453.

Adding to 164312201 its reverse (102213461), we get a palindrome (266525662).

The spelling of 164312201 in words is "one hundred sixty-four million, three hundred twelve thousand, two hundred one".