4146561 has 12 divisors (see below), whose sum is σ = 6103188. Its totient is φ = 2711904.

The previous prime is 4146559. The next prime is 4146577. The reversal of 4146561 is 1656414.

4146561 is a `hidden beast` number, since 4 + 1 + 4 + 656 + 1 = 666.

4146561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1404225 + 2742336 = 1185^2 + 1656^2 .

It is not a de Polignac number, because 4146561 - 2¹ = 4146559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4146661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3870 + ... + 4823.

It is an arithmetic number, because the mean of its divisors is an integer number (508599).

Almost surely, 2^4146561 is an apocalyptic number.

It is an amenable number.

4146561 is a deficient number, since it is larger than the sum of its proper divisors (1956627).

4146561 is a wasteful number, since it uses less digits than its factorization.

4146561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8752 (or 8749 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 4146561 is about 2036.3106344563. The cubic root of 4146561 is about 160.6556559050.

The spelling of 4146561 in words is "four million, one hundred forty-six thousand, five hundred sixty-one".