164205479 has 2 divisors, whose sum is σ = 164205480. Its totient is φ = 164205478.

The previous prime is 164205469. The next prime is 164205491. The reversal of 164205479 is 974502461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164205479 - 2¹² = 164201383 is a prime.

It is a super-3 number, since 3×164205479³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164205469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82102739 + 82102740.

It is an arithmetic number, because the mean of its divisors is an integer number (82102740).

Almost surely, 2^164205479 is an apocalyptic number.

164205479 is a deficient number, since it is larger than the sum of its proper divisors (1).

164205479 is an equidigital number, since it uses as much as digits as its factorization.

164205479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 164205479 is about 12814.2685706208. The cubic root of 164205479 is about 547.5988759658.

The spelling of 164205479 in words is "one hundred sixty-four million, two hundred five thousand, four hundred seventy-nine".