100164065 has 4 divisors (see below), whose sum is σ = 120196884. Its totient is φ = 80131248.

The previous prime is 100164061. The next prime is 100164073. The reversal of 100164065 is 560461001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560461001 = 59 ⋅9499339.

It can be written as a sum of positive squares in 2 ways, for example, as 65918161 + 34245904 = 8119^2 + 5852^2 .

It is a cyclic number.

It is not a de Polignac number, because 100164065 - 2² = 100164061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100164065.

It is not an unprimeable number, because it can be changed into a prime (100164061) 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, 10016402 + ... + 10016411.

It is an arithmetic number, because the mean of its divisors is an integer number (30049221).

Almost surely, 2^100164065 is an apocalyptic number.

It is an amenable number.

100164065 is a deficient number, since it is larger than the sum of its proper divisors (20032819).

100164065 is an equidigital number, since it uses as much as digits as its factorization.

100164065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20032818.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 100164065 is about 10008.1998880918. The cubic root of 100164065 is about 464.4125854237.

The spelling of 100164065 in words is "one hundred million, one hundred sixty-four thousand, sixty-five".