1006165 has 4 divisors (see below), whose sum is σ = 1207404. Its totient is φ = 804928.

The previous prime is 1006163. The next prime is 1006169. The reversal of 1006165 is 5616001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 762129 + 244036 = 873^2 + 494^2 .

It is a cyclic number.

It is not a de Polignac number, because 1006165 - 2¹ = 1006163 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100612 + ... + 100621.

It is an arithmetic number, because the mean of its divisors is an integer number (301851).

2^1006165 is an apocalyptic number.

It is an amenable number.

1006165 is a deficient number, since it is larger than the sum of its proper divisors (201239).

1006165 is an equidigital number, since it uses as much as digits as its factorization.

1006165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201238.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1006165 is about 1003.0777636853. The cubic root of 1006165 is about 100.2050791380.

The spelling of 1006165 in words is "one million, six thousand, one hundred sixty-five".