165000601 has 2 divisors, whose sum is σ = 165000602. Its totient is φ = 165000600.

The previous prime is 165000593. The next prime is 165000611. The reversal of 165000601 is 106000561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143424576 + 21576025 = 11976^2 + 4645^2 .

It is an emirp because it is prime and its reverse (106000561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165000601 - 2³ = 165000593 is a prime.

It is a super-2 number, since 2×165000601² = 54450396660722402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (165000611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82500300 + 82500301.

It is an arithmetic number, because the mean of its divisors is an integer number (82500301).

Almost surely, 2^165000601 is an apocalyptic number.

It is an amenable number.

165000601 is a deficient number, since it is larger than the sum of its proper divisors (1).

165000601 is an equidigital number, since it uses as much as digits as its factorization.

165000601 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 19.

The square root of 165000601 is about 12845.2559725371. The cubic root of 165000601 is about 548.4813211755.

The spelling of 165000601 in words is "one hundred sixty-five million, six hundred one", and thus it is an aban number.