4180561 has 8 divisors (see below), whose sum is σ = 5212224. Its totient is φ = 3257520.

The previous prime is 4180541. The next prime is 4180607. The reversal of 4180561 is 1650814.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4180561 - 2¹¹ = 4178513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4180541) 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 7 ways as a sum of consecutive naturals, for example, 27070 + ... + 27223.

It is an arithmetic number, because the mean of its divisors is an integer number (651528).

Almost surely, 2^4180561 is an apocalyptic number.

It is an amenable number.

4180561 is a deficient number, since it is larger than the sum of its proper divisors (1031663).

4180561 is a wasteful number, since it uses less digits than its factorization.

4180561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54311.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 4180561 is about 2044.6420224577. The cubic root of 4180561 is about 161.0935634035.

The spelling of 4180561 in words is "four million, one hundred eighty thousand, five hundred sixty-one".