164639341 has 2 divisors, whose sum is σ = 164639342. Its totient is φ = 164639340.

The previous prime is 164639329. The next prime is 164639347. The reversal of 164639341 is 143936461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160123716 + 4515625 = 12654^2 + 2125^2 .

It is a cyclic number.

It is not a de Polignac number, because 164639341 - 2¹¹ = 164637293 is a prime.

It is a super-2 number, since 2×164639341² = 54212225209828562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164639341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164639347) 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, 82319670 + 82319671.

It is an arithmetic number, because the mean of its divisors is an integer number (82319671).

Almost surely, 2^164639341 is an apocalyptic number.

It is an amenable number.

164639341 is a deficient number, since it is larger than the sum of its proper divisors (1).

164639341 is an equidigital number, since it uses as much as digits as its factorization.

164639341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 164639341 is about 12831.1862662811. The cubic root of 164639341 is about 548.0807384991.

The spelling of 164639341 in words is "one hundred sixty-four million, six hundred thirty-nine thousand, three hundred forty-one".