164545651 has 2 divisors, whose sum is σ = 164545652. Its totient is φ = 164545650.

The previous prime is 164545639. The next prime is 164545673. The reversal of 164545651 is 156545461.

It is a weak prime.

It is an emirp because it is prime and its reverse (156545461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164545651 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 164545651.

It is not a weakly prime, because it can be changed into another prime (164545351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82272825 + 82272826.

It is an arithmetic number, because the mean of its divisors is an integer number (82272826).

Almost surely, 2^164545651 is an apocalyptic number.

164545651 is a deficient number, since it is larger than the sum of its proper divisors (1).

164545651 is an equidigital number, since it uses as much as digits as its factorization.

164545651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 37.

The square root of 164545651 is about 12827.5348761950. The cubic root of 164545651 is about 547.9767547904.

The spelling of 164545651 in words is "one hundred sixty-four million, five hundred forty-five thousand, six hundred fifty-one".