164982641 has 2 divisors, whose sum is σ = 164982642. Its totient is φ = 164982640.

The previous prime is 164982617. The next prime is 164982659. The reversal of 164982641 is 146289461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161391616 + 3591025 = 12704^2 + 1895^2 .

It is a cyclic number.

It is not a de Polignac number, because 164982641 - 2⁶ = 164982577 is a prime.

It is not a weakly prime, because it can be changed into another prime (164982691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82491320 + 82491321.

It is an arithmetic number, because the mean of its divisors is an integer number (82491321).

Almost surely, 2^164982641 is an apocalyptic number.

It is an amenable number.

164982641 is a deficient number, since it is larger than the sum of its proper divisors (1).

164982641 is an equidigital number, since it uses as much as digits as its factorization.

164982641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 41.

The square root of 164982641 is about 12844.5568627337. The cubic root of 164982641 is about 548.4614200723.

The spelling of 164982641 in words is "one hundred sixty-four million, nine hundred eighty-two thousand, six hundred forty-one".