164914481 has 2 divisors, whose sum is σ = 164914482. Its totient is φ = 164914480.

The previous prime is 164914441. The next prime is 164914487. The reversal of 164914481 is 184419461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143616256 + 21298225 = 11984^2 + 4615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164914481 is a prime.

It is a super-2 number, since 2×164914481² = 54393572086998722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164914487) 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, 82457240 + 82457241.

It is an arithmetic number, because the mean of its divisors is an integer number (82457241).

Almost surely, 2^164914481 is an apocalyptic number.

It is an amenable number.

164914481 is a deficient number, since it is larger than the sum of its proper divisors (1).

164914481 is an equidigital number, since it uses as much as digits as its factorization.

164914481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 164914481 is about 12841.9033246634. The cubic root of 164914481 is about 548.3858802470.

The spelling of 164914481 in words is "one hundred sixty-four million, nine hundred fourteen thousand, four hundred eighty-one".