164302009 has 2 divisors, whose sum is σ = 164302010. Its totient is φ = 164302008.

The previous prime is 164301971. The next prime is 164302027. The reversal of 164302009 is 900203461.

164302009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134490409 + 29811600 = 11597^2 + 5460^2 .

It is an emirp because it is prime and its reverse (900203461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164302009 - 2¹⁹ = 163777721 is a prime.

It is a super-2 number, since 2×164302009² = 53990300322872162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164300009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82151004 + 82151005.

It is an arithmetic number, because the mean of its divisors is an integer number (82151005).

Almost surely, 2^164302009 is an apocalyptic number.

It is an amenable number.

164302009 is a deficient number, since it is larger than the sum of its proper divisors (1).

164302009 is an equidigital number, since it uses as much as digits as its factorization.

164302009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 164302009 is about 12818.0345217198. The cubic root of 164302009 is about 547.7061589569.

The spelling of 164302009 in words is "one hundred sixty-four million, three hundred two thousand, nine".