164325589 has 2 divisors, whose sum is σ = 164325590. Its totient is φ = 164325588.

The previous prime is 164325569. The next prime is 164325647. The reversal of 164325589 is 985523461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160224964 + 4100625 = 12658^2 + 2025^2 .

It is a cyclic number.

It is not a de Polignac number, because 164325589 - 2⁷ = 164325461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164325529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82162794 + 82162795.

It is an arithmetic number, because the mean of its divisors is an integer number (82162795).

Almost surely, 2^164325589 is an apocalyptic number.

It is an amenable number.

164325589 is a deficient number, since it is larger than the sum of its proper divisors (1).

164325589 is an equidigital number, since it uses as much as digits as its factorization.

164325589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

The square root of 164325589 is about 12818.9542865243. The cubic root of 164325589 is about 547.7323592725.

The spelling of 164325589 in words is "one hundred sixty-four million, three hundred twenty-five thousand, five hundred eighty-nine".