164154161 has 2 divisors, whose sum is σ = 164154162. Its totient is φ = 164154160.

The previous prime is 164154131. The next prime is 164154169. The reversal of 164154161 is 161451461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121330225 + 42823936 = 11015^2 + 6544^2 .

It is a cyclic number.

It is not a de Polignac number, because 164154161 - 2⁶ = 164154097 is a prime.

It is a super-2 number, since 2×164154161² = 53893177147227842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164154169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82077080 + 82077081.

It is an arithmetic number, because the mean of its divisors is an integer number (82077081).

Almost surely, 2^164154161 is an apocalyptic number.

It is an amenable number.

164154161 is a deficient number, since it is larger than the sum of its proper divisors (1).

164154161 is an equidigital number, since it uses as much as digits as its factorization.

164154161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 164154161 is about 12812.2660368882. The cubic root of 164154161 is about 547.5418242619.

The spelling of 164154161 in words is "one hundred sixty-four million, one hundred fifty-four thousand, one hundred sixty-one".