4812161 has 4 divisors (see below), whose sum is σ = 4967424. Its totient is φ = 4656900.

The previous prime is 4812151. The next prime is 4812169. The reversal of 4812161 is 1612184.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4812161 - 2⁶ = 4812097 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4812169) 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, 77585 + ... + 77646.

It is an arithmetic number, because the mean of its divisors is an integer number (1241856).

Almost surely, 2^4812161 is an apocalyptic number.

It is an amenable number.

4812161 is a deficient number, since it is larger than the sum of its proper divisors (155263).

4812161 is a wasteful number, since it uses less digits than its factorization.

4812161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155262.

The product of its digits is 384, while the sum is 23.

The square root of 4812161 is about 2193.6638302165. The cubic root of 4812161 is about 168.8288710416.

Adding to 4812161 its sum of digits (23), we get a palindrome (4812184).

The spelling of 4812161 in words is "four million, eight hundred twelve thousand, one hundred sixty-one".