4056161 has 2 divisors, whose sum is σ = 4056162. Its totient is φ = 4056160.

The previous prime is 4056137. The next prime is 4056179. The reversal of 4056161 is 1616504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2689600 + 1366561 = 1640^2 + 1169^2 .

It is a cyclic number.

It is not a de Polignac number, because 4056161 - 2¹⁰ = 4055137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4056121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028080 + 2028081.

It is an arithmetic number, because the mean of its divisors is an integer number (2028081).

Almost surely, 2^4056161 is an apocalyptic number.

It is an amenable number.

4056161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4056161 is an equidigital number, since it uses as much as digits as its factorization.

4056161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 4056161 is about 2013.9913108055. The cubic root of 4056161 is about 159.4795720735.

The spelling of 4056161 in words is "four million, fifty-six thousand, one hundred sixty-one".