4472161 has 8 divisors (see below), whose sum is σ = 4573800. Its totient is φ = 4371840.

The previous prime is 4472159. The next prime is 4472197. The reversal of 4472161 is 1612744.

It can be written as a sum of positive squares in 4 ways, for example, as 245025 + 4227136 = 495^2 + 2056^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4472161 - 2¹ = 4472159 is a prime.

It is a Duffinian number.

4472161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4472101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9471 + ... + 9931.

It is an arithmetic number, because the mean of its divisors is an integer number (571725).

Almost surely, 2^4472161 is an apocalyptic number.

It is an amenable number.

4472161 is a deficient number, since it is larger than the sum of its proper divisors (101639).

4472161 is a wasteful number, since it uses less digits than its factorization.

4472161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659.

The product of its digits is 1344, while the sum is 25.

The square root of 4472161 is about 2114.7484483976. The cubic root of 4472161 is about 164.7552047989.

The spelling of 4472161 in words is "four million, four hundred seventy-two thousand, one hundred sixty-one".