164204743 has 2 divisors, whose sum is σ = 164204744. Its totient is φ = 164204742.

The previous prime is 164204723. The next prime is 164204749. The reversal of 164204743 is 347402461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164204743 - 2⁹ = 164204231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164204749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82102371 + 82102372.

It is an arithmetic number, because the mean of its divisors is an integer number (82102372).

Almost surely, 2^164204743 is an apocalyptic number.

164204743 is a deficient number, since it is larger than the sum of its proper divisors (1).

164204743 is an equidigital number, since it uses as much as digits as its factorization.

164204743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 164204743 is about 12814.2398526015. The cubic root of 164204743 is about 547.5980578174.

The spelling of 164204743 in words is "one hundred sixty-four million, two hundred four thousand, seven hundred forty-three".