4056361 has 4 divisors (see below), whose sum is σ = 4092372. Its totient is φ = 4020352.

The previous prime is 4056359. The next prime is 4056379. The reversal of 4056361 is 1636504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1115136 + 2941225 = 1056^2 + 1715^2 .

It is a cyclic number.

It is not a de Polignac number, because 4056361 - 2¹ = 4056359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4056161) 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 3 ways as a sum of consecutive naturals, for example, 17836 + ... + 18061.

It is an arithmetic number, because the mean of its divisors is an integer number (1023093).

Almost surely, 2^4056361 is an apocalyptic number.

It is an amenable number.

4056361 is a deficient number, since it is larger than the sum of its proper divisors (36011).

4056361 is a wasteful number, since it uses less digits than its factorization.

4056361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36010.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 4056361 is about 2014.0409628406. The cubic root of 4056361 is about 159.4821932211.

The spelling of 4056361 in words is "four million, fifty-six thousand, three hundred sixty-one".