164342369 has 2 divisors, whose sum is σ = 164342370. Its totient is φ = 164342368.

The previous prime is 164342363. The next prime is 164342393. The reversal of 164342369 is 963243461.

It is a happy number.

164342369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129390625 + 34951744 = 11375^2 + 5912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164342369 is a prime.

It is a super-2 number, since 2×164342369² = 54016828497064322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (164342363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82171184 + 82171185.

It is an arithmetic number, because the mean of its divisors is an integer number (82171185).

Almost surely, 2^164342369 is an apocalyptic number.

It is an amenable number.

164342369 is a deficient number, since it is larger than the sum of its proper divisors (1).

164342369 is an equidigital number, since it uses as much as digits as its factorization.

164342369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The square root of 164342369 is about 12819.6087693814. The cubic root of 164342369 is about 547.7510024151.

The spelling of 164342369 in words is "one hundred sixty-four million, three hundred forty-two thousand, three hundred sixty-nine".