164196913 has 2 divisors, whose sum is σ = 164196914. Its totient is φ = 164196912.

The previous prime is 164196911. The next prime is 164196953. The reversal of 164196913 is 319691461.

It is a happy number.

It is an a-pointer prime, because the next prime (164196953) can be obtained adding 164196913 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147452449 + 16744464 = 12143^2 + 4092^2 .

It is an emirp because it is prime and its reverse (319691461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164196913 - 2¹ = 164196911 is a prime.

Together with 164196911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (164196911) 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, 82098456 + 82098457.

It is an arithmetic number, because the mean of its divisors is an integer number (82098457).

Almost surely, 2^164196913 is an apocalyptic number.

It is an amenable number.

164196913 is a deficient number, since it is larger than the sum of its proper divisors (1).

164196913 is an equidigital number, since it uses as much as digits as its factorization.

164196913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 40.

The square root of 164196913 is about 12813.9343294712. The cubic root of 164196913 is about 547.5893537226.

It can be divided in two parts, 16419 and 6913, that added together give a palindrome (23332).

The spelling of 164196913 in words is "one hundred sixty-four million, one hundred ninety-six thousand, nine hundred thirteen".