4025161 has 12 divisors (see below), whose sum is σ = 4813312. Its totient is φ = 3297096.

The previous prime is 4025111. The next prime is 4025167. The reversal of 4025161 is 1615204.

It is not a de Polignac number, because 4025161 - 2¹¹ = 4023113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025167) 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 11 ways as a sum of consecutive naturals, for example, 3160 + ... + 4246.

Almost surely, 2^4025161 is an apocalyptic number.

It is an amenable number.

4025161 is a deficient number, since it is larger than the sum of its proper divisors (788151).

4025161 is a wasteful number, since it uses less digits than its factorization.

4025161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 4025161 is about 2006.2803891779. The cubic root of 4025161 is about 159.0722480623.

It can be divided in two parts, 4025 and 161, that multiplied together give a square (648025 = 805²).

The spelling of 4025161 in words is "four million, twenty-five thousand, one hundred sixty-one".