164220101 has 2 divisors, whose sum is σ = 164220102. Its totient is φ = 164220100.

The previous prime is 164220079. The next prime is 164220107. The reversal of 164220101 is 101022461.

164220101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163456225 + 763876 = 12785^2 + 874^2 .

It is an emirp because it is prime and its reverse (101022461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164220101 - 2⁶ = 164220037 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 164220101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164220107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82110050 + 82110051.

It is an arithmetic number, because the mean of its divisors is an integer number (82110051).

Almost surely, 2^164220101 is an apocalyptic number.

It is an amenable number.

164220101 is a deficient number, since it is larger than the sum of its proper divisors (1).

164220101 is an equidigital number, since it uses as much as digits as its factorization.

164220101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 164220101 is about 12814.8390938006. The cubic root of 164220101 is about 547.6151294899.

Adding to 164220101 its reverse (101022461), we get a palindrome (265242562).

The spelling of 164220101 in words is "one hundred sixty-four million, two hundred twenty thousand, one hundred one".