4172161 has 16 divisors (see below), whose sum is σ = 4967424. Its totient is φ = 3430224.

The previous prime is 4172159. The next prime is 4172167. The reversal of 4172161 is 1612714.

It is not a de Polignac number, because 4172161 - 2¹ = 4172159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4172167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24900 + ... + 25066.

It is an arithmetic number, because the mean of its divisors is an integer number (310464).

Almost surely, 2^4172161 is an apocalyptic number.

It is an amenable number.

4172161 is a deficient number, since it is larger than the sum of its proper divisors (795263).

4172161 is a wasteful number, since it uses less digits than its factorization.

4172161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300.

The product of its digits is 336, while the sum is 22.

The square root of 4172161 is about 2042.5868402592. The cubic root of 4172161 is about 160.9855959748.

Adding to 4172161 its reverse (1612714), we get a palindrome (5784875).

The spelling of 4172161 in words is "four million, one hundred seventy-two thousand, one hundred sixty-one".