541046581 has 4 divisors (see below), whose sum is σ = 548458252. Its totient is φ = 533634912.

The previous prime is 541046567. The next prime is 541046609. The reversal of 541046581 is 185640145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 185640145 = 5 ⋅37128029.

It can be written as a sum of positive squares in 2 ways, for example, as 328878225 + 212168356 = 18135^2 + 14566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-541046581 is a prime.

It is a super-2 number, since 2×541046581² = 585462805623579122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541046531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3705726 + ... + 3705871.

It is an arithmetic number, because the mean of its divisors is an integer number (137114563).

Almost surely, 2^541046581 is an apocalyptic number.

It is an amenable number.

541046581 is a deficient number, since it is larger than the sum of its proper divisors (7411671).

541046581 is an equidigital number, since it uses as much as digits as its factorization.

541046581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411670.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 541046581 is about 23260.4080144782. The cubic root of 541046581 is about 814.8510302703.

The spelling of 541046581 in words is "five hundred forty-one million, forty-six thousand, five hundred eighty-one".