164229997 has 2 divisors, whose sum is σ = 164229998. Its totient is φ = 164229996.

The previous prime is 164229991. The next prime is 164230037. The reversal of 164229997 is 799922461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151634596 + 12595401 = 12314^2 + 3549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164229997 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164229997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164229991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82114998 + 82114999.

It is an arithmetic number, because the mean of its divisors is an integer number (82114999).

Almost surely, 2^164229997 is an apocalyptic number.

It is an amenable number.

164229997 is a deficient number, since it is larger than the sum of its proper divisors (1).

164229997 is an equidigital number, since it uses as much as digits as its factorization.

164229997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 164229997 is about 12815.2252028593. The cubic root of 164229997 is about 547.6261291390.

The spelling of 164229997 in words is "one hundred sixty-four million, two hundred twenty-nine thousand, nine hundred ninety-seven".