4772161 has 4 divisors (see below), whose sum is σ = 4781524. Its totient is φ = 4762800.

The previous prime is 4772147. The next prime is 4772177. The reversal of 4772161 is 1612774.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2461761 + 2310400 = 1569^2 + 1520^2 .

It is a cyclic number.

It is not a de Polignac number, because 4772161 - 2¹⁷ = 4641089 is a prime.

It is a Duffinian number.

4772161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4772111) 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, 3870 + ... + 4951.

It is an arithmetic number, because the mean of its divisors is an integer number (1195381).

Almost surely, 2^4772161 is an apocalyptic number.

It is an amenable number.

4772161 is a deficient number, since it is larger than the sum of its proper divisors (9363).

4772161 is an equidigital number, since it uses as much as digits as its factorization.

4772161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9362.

The product of its digits is 2352, while the sum is 28.

The square root of 4772161 is about 2184.5276377286. The cubic root of 4772161 is about 168.3597849706.

The spelling of 4772161 in words is "four million, seven hundred seventy-two thousand, one hundred sixty-one".