164538337 has 2 divisors, whose sum is σ = 164538338. Its totient is φ = 164538336.

The previous prime is 164538329. The next prime is 164538377. The reversal of 164538337 is 733835461.

It is an a-pointer prime, because the next prime (164538377) can be obtained adding 164538337 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., 164070481 + 467856 = 12809^2 + 684^2 .

It is a cyclic number.

It is not a de Polignac number, because 164538337 - 2³ = 164538329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164538337.

It is not a weakly prime, because it can be changed into another prime (164538377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82269168 + 82269169.

It is an arithmetic number, because the mean of its divisors is an integer number (82269169).

Almost surely, 2^164538337 is an apocalyptic number.

It is an amenable number.

164538337 is a deficient number, since it is larger than the sum of its proper divisors (1).

164538337 is an equidigital number, since it uses as much as digits as its factorization.

164538337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 164538337 is about 12827.2497831764. The cubic root of 164538337 is about 547.9686355413.

The spelling of 164538337 in words is "one hundred sixty-four million, five hundred thirty-eight thousand, three hundred thirty-seven".