164364443 has 2 divisors, whose sum is σ = 164364444. Its totient is φ = 164364442.

The previous prime is 164364407. The next prime is 164364451. The reversal of 164364443 is 344463461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164364443 - 2¹² = 164360347 is a prime.

It is not a weakly prime, because it can be changed into another prime (164364493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82182221 + 82182222.

It is an arithmetic number, because the mean of its divisors is an integer number (82182222).

Almost surely, 2^164364443 is an apocalyptic number.

164364443 is a deficient number, since it is larger than the sum of its proper divisors (1).

164364443 is an equidigital number, since it uses as much as digits as its factorization.

164364443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 35.

The square root of 164364443 is about 12820.4696871839. The cubic root of 164364443 is about 547.7755254365.

The spelling of 164364443 in words is "one hundred sixty-four million, three hundred sixty-four thousand, four hundred forty-three".