4365161 has 4 divisors (see below), whose sum is σ = 4378452. Its totient is φ = 4351872.

The previous prime is 4365157. The next prime is 4365191. The reversal of 4365161 is 1615634.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1615634 = 2 ⋅807817.

It can be written as a sum of positive squares in 2 ways, for example, as 755161 + 3610000 = 869^2 + 1900^2 .

It is a cyclic number.

It is not a de Polignac number, because 4365161 - 2² = 4365157 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4365161.

It is not an unprimeable number, because it can be changed into a prime (4365121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6140 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (1094613).

Almost surely, 2^4365161 is an apocalyptic number.

It is an amenable number.

4365161 is a deficient number, since it is larger than the sum of its proper divisors (13291).

4365161 is a wasteful number, since it uses less digits than its factorization.

4365161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13290.

The product of its digits is 2160, while the sum is 26.

The square root of 4365161 is about 2089.2967716435. The cubic root of 4365161 is about 163.4306176885.

The spelling of 4365161 in words is "four million, three hundred sixty-five thousand, one hundred sixty-one".