164567197 has 2 divisors, whose sum is σ = 164567198. Its totient is φ = 164567196.

The previous prime is 164567167. The next prime is 164567213. The reversal of 164567197 is 791765461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161518681 + 3048516 = 12709^2 + 1746^2 .

It is an emirp because it is prime and its reverse (791765461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164567197 - 2¹⁹ = 164042909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164567167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82283598 + 82283599.

It is an arithmetic number, because the mean of its divisors is an integer number (82283599).

Almost surely, 2^164567197 is an apocalyptic number.

It is an amenable number.

164567197 is a deficient number, since it is larger than the sum of its proper divisors (1).

164567197 is an equidigital number, since it uses as much as digits as its factorization.

164567197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 46.

The square root of 164567197 is about 12828.3746827102. The cubic root of 164567197 is about 548.0006715409. Note that the first 3 decimals are identical.

It can be divided in two parts, 16456 and 7197, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 164567197 in words is "one hundred sixty-four million, five hundred sixty-seven thousand, one hundred ninety-seven".