164044417 has 2 divisors, whose sum is σ = 164044418. Its totient is φ = 164044416.

The previous prime is 164044411. The next prime is 164044427. The reversal of 164044417 is 714440461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154778481 + 9265936 = 12441^2 + 3044^2 .

It is a cyclic number.

It is not a de Polignac number, because 164044417 - 2¹¹ = 164042369 is a prime.

It is not a weakly prime, because it can be changed into another prime (164044411) 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, 82022208 + 82022209.

It is an arithmetic number, because the mean of its divisors is an integer number (82022209).

Almost surely, 2^164044417 is an apocalyptic number.

It is an amenable number.

164044417 is a deficient number, since it is larger than the sum of its proper divisors (1).

164044417 is an equidigital number, since it uses as much as digits as its factorization.

164044417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 164044417 is about 12807.9825499569. The cubic root of 164044417 is about 547.4197787706.

Adding to 164044417 its reverse (714440461), we get a palindrome (878484878).

It can be divided in two parts, 1640444 and 17, that added together give a palindrome (1640461).

The spelling of 164044417 in words is "one hundred sixty-four million, forty-four thousand, four hundred seventeen".