4161601 has 4 divisors (see below), whose sum is σ = 4178052. Its totient is φ = 4145152.

The previous prime is 4161593. The next prime is 4161607. The reversal of 4161601 is 1061614.

It is a happy number.

It is a Cunningham number, because it is equal to 2040²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1061614 = 2 ⋅530807.

It can be written as a sum of positive squares in 2 ways, for example, as 4096576 + 65025 = 2024^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 4161601 - 2³ = 4161593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4161607) 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, 7840 + ... + 8353.

It is an arithmetic number, because the mean of its divisors is an integer number (1044513).

Almost surely, 2^4161601 is an apocalyptic number.

It is an amenable number.

4161601 is a deficient number, since it is larger than the sum of its proper divisors (16451).

4161601 is a wasteful number, since it uses less digits than its factorization.

4161601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 4161601 is about 2040.0002450980. Note that the first 3 decimals coincide. The cubic root of 4161601 is about 160.8496596907.

The spelling of 4161601 in words is "four million, one hundred sixty-one thousand, six hundred one".