164061109 has 2 divisors, whose sum is σ = 164061110. Its totient is φ = 164061108.

The previous prime is 164061077. The next prime is 164061113. The reversal of 164061109 is 901160461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159012100 + 5049009 = 12610^2 + 2247^2 .

It is an emirp because it is prime and its reverse (901160461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164061109 - 2⁵ = 164061077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164061119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82030554 + 82030555.

It is an arithmetic number, because the mean of its divisors is an integer number (82030555).

Almost surely, 2^164061109 is an apocalyptic number.

It is an amenable number.

164061109 is a deficient number, since it is larger than the sum of its proper divisors (1).

164061109 is an equidigital number, since it uses as much as digits as its factorization.

164061109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 164061109 is about 12808.6341582543. The cubic root of 164061109 is about 547.4383453296.

The spelling of 164061109 in words is "one hundred sixty-four million, sixty-one thousand, one hundred nine".