4051161 has 32 divisors (see below), whose sum is σ = 6480000. Its totient is φ = 2493504.

The previous prime is 4051139. The next prime is 4051181. The reversal of 4051161 is 1611504.

It is not a de Polignac number, because 4051161 - 2¹⁴ = 4034777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4051121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27115 + ... + 27263.

It is an arithmetic number, because the mean of its divisors is an integer number (202500).

Almost surely, 2^4051161 is an apocalyptic number.

It is an amenable number.

4051161 is a deficient number, since it is larger than the sum of its proper divisors (2428839).

4051161 is a wasteful number, since it uses less digits than its factorization.

4051161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 4051161 is about 2012.7496118494. The cubic root of 4051161 is about 159.4140153617.

Adding to 4051161 its product of nonzero digits (120), we get a triangular number (4051281 = T₂₈₄₆).

Adding to 4051161 its reverse (1611504), we get a palindrome (5662665).

The spelling of 4051161 in words is "four million, fifty-one thousand, one hundred sixty-one".