164229727 has 2 divisors, whose sum is σ = 164229728. Its totient is φ = 164229726.

The previous prime is 164229721. The next prime is 164229731. The reversal of 164229727 is 727922461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164229727 - 2¹⁹ = 163705439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164229727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164229721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82114863 + 82114864.

It is an arithmetic number, because the mean of its divisors is an integer number (82114864).

Almost surely, 2^164229727 is an apocalyptic number.

164229727 is a deficient number, since it is larger than the sum of its proper divisors (1).

164229727 is an equidigital number, since it uses as much as digits as its factorization.

164229727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 164229727 is about 12815.2146685102. The cubic root of 164229727 is about 547.6258290332.

The spelling of 164229727 in words is "one hundred sixty-four million, two hundred twenty-nine thousand, seven hundred twenty-seven".