164500543 has 2 divisors, whose sum is σ = 164500544. Its totient is φ = 164500542.

The previous prime is 164500507. The next prime is 164500559. The reversal of 164500543 is 345005461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164500543 - 2¹³ = 164492351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164500573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82250271 + 82250272.

It is an arithmetic number, because the mean of its divisors is an integer number (82250272).

Almost surely, 2^164500543 is an apocalyptic number.

164500543 is a deficient number, since it is larger than the sum of its proper divisors (1).

164500543 is an equidigital number, since it uses as much as digits as its factorization.

164500543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 164500543 is about 12825.7765067071. The cubic root of 164500543 is about 547.9266767029.

The spelling of 164500543 in words is "one hundred sixty-four million, five hundred thousand, five hundred forty-three".