164158697 has 2 divisors, whose sum is σ = 164158698. Its totient is φ = 164158696.

The previous prime is 164158693. The next prime is 164158699. The reversal of 164158697 is 796851461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135117376 + 29041321 = 11624^2 + 5389^2 .

It is a cyclic number.

It is not a de Polignac number, because 164158697 - 2² = 164158693 is a prime.

Together with 164158699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164158693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82079348 + 82079349.

It is an arithmetic number, because the mean of its divisors is an integer number (82079349).

Almost surely, 2^164158697 is an apocalyptic number.

It is an amenable number.

164158697 is a deficient number, since it is larger than the sum of its proper divisors (1).

164158697 is an equidigital number, since it uses as much as digits as its factorization.

164158697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 47.

The square root of 164158697 is about 12812.4430535320. The cubic root of 164158697 is about 547.5468675433.

The spelling of 164158697 in words is "one hundred sixty-four million, one hundred fifty-eight thousand, six hundred ninety-seven".