164800709 has 2 divisors, whose sum is σ = 164800710. Its totient is φ = 164800708.

The previous prime is 164800693. The next prime is 164800723. The reversal of 164800709 is 907008461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163584100 + 1216609 = 12790^2 + 1103^2 .

It is an emirp because it is prime and its reverse (907008461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164800709 - 2⁴ = 164800693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164800729) 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, 82400354 + 82400355.

It is an arithmetic number, because the mean of its divisors is an integer number (82400355).

Almost surely, 2^164800709 is an apocalyptic number.

It is an amenable number.

164800709 is a deficient number, since it is larger than the sum of its proper divisors (1).

164800709 is an equidigital number, since it uses as much as digits as its factorization.

164800709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 164800709 is about 12837.4728432040. The cubic root of 164800709 is about 548.2597435346.

The spelling of 164800709 in words is "one hundred sixty-four million, eight hundred thousand, seven hundred nine".