164473853 has 2 divisors, whose sum is σ = 164473854. Its totient is φ = 164473852.

The previous prime is 164473801. The next prime is 164473889. The reversal of 164473853 is 358374461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146942884 + 17530969 = 12122^2 + 4187^2 .

It is an emirp because it is prime and its reverse (358374461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164473853 - 2¹⁰ = 164472829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164473853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164473553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82236926 + 82236927.

It is an arithmetic number, because the mean of its divisors is an integer number (82236927).

Almost surely, 2^164473853 is an apocalyptic number.

It is an amenable number.

164473853 is a deficient number, since it is larger than the sum of its proper divisors (1).

164473853 is an equidigital number, since it uses as much as digits as its factorization.

164473853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 164473853 is about 12824.7359816879. The cubic root of 164473853 is about 547.8970416356.

The spelling of 164473853 in words is "one hundred sixty-four million, four hundred seventy-three thousand, eight hundred fifty-three".