164928229 has 2 divisors, whose sum is σ = 164928230. Its totient is φ = 164928228.

The previous prime is 164928131. The next prime is 164928233. The reversal of 164928229 is 922829461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114447204 + 50481025 = 10698^2 + 7105^2 .

It is an emirp because it is prime and its reverse (922829461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164928229 - 2⁹ = 164927717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164928299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82464114 + 82464115.

It is an arithmetic number, because the mean of its divisors is an integer number (82464115).

Almost surely, 2^164928229 is an apocalyptic number.

It is an amenable number.

164928229 is a deficient number, since it is larger than the sum of its proper divisors (1).

164928229 is an equidigital number, since it uses as much as digits as its factorization.

164928229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 164928229 is about 12842.4385924169. The cubic root of 164928229 is about 548.4011184471.

The spelling of 164928229 in words is "one hundred sixty-four million, nine hundred twenty-eight thousand, two hundred twenty-nine".