165001075 has 6 divisors (see below), whose sum is σ = 204601364. Its totient is φ = 132000840.

The previous prime is 165001069. The next prime is 165001087. The reversal of 165001075 is 570100561.

It is not a de Polignac number, because 165001075 - 2⁵ = 165001043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 6600043 = 165001075 / (1 + 6 + 5 + 0 + 0 + 1 + 0 + 7 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3299997 + ... + 3300046.

Almost surely, 2^165001075 is an apocalyptic number.

165001075 is a deficient number, since it is larger than the sum of its proper divisors (39600289).

165001075 is an equidigital number, since it uses as much as digits as its factorization.

165001075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600053 (or 6600048 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 165001075 is about 12845.2744229152. The cubic root of 165001075 is about 548.4818463855.

The spelling of 165001075 in words is "one hundred sixty-five million, one thousand, seventy-five".