165106001 has 2 divisors, whose sum is σ = 165106002. Its totient is φ = 165106000.

The previous prime is 165105979. The next prime is 165106003. The reversal of 165106001 is 100601561.

It is a happy number.

165106001 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., 148254976 + 16851025 = 12176^2 + 4105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165106001 is a prime.

Together with 165106003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165106003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82553000 + 82553001.

It is an arithmetic number, because the mean of its divisors is an integer number (82553001).

Almost surely, 2^165106001 is an apocalyptic number.

It is an amenable number.

165106001 is a deficient number, since it is larger than the sum of its proper divisors (1).

165106001 is an equidigital number, since it uses as much as digits as its factorization.

165106001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 165106001 is about 12849.3579995267. The cubic root of 165106001 is about 548.5980836315.

Adding to 165106001 its reverse (100601561), we get a palindrome (265707562).

The spelling of 165106001 in words is "one hundred sixty-five million, one hundred six thousand, one".