541486721 has 2 divisors, whose sum is σ = 541486722. Its totient is φ = 541486720.

The previous prime is 541486717. The next prime is 541486727. The reversal of 541486721 is 127684145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 539911696 + 1575025 = 23236^2 + 1255^2 .

It is a cyclic number.

It is not a de Polignac number, because 541486721 - 2² = 541486717 is a prime.

It is not a weakly prime, because it can be changed into another prime (541486727) 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 as a sum of consecutive naturals, namely, 270743360 + 270743361.

It is an arithmetic number, because the mean of its divisors is an integer number (270743361).

Almost surely, 2^541486721 is an apocalyptic number.

It is an amenable number.

541486721 is a deficient number, since it is larger than the sum of its proper divisors (1).

541486721 is an equidigital number, since it uses as much as digits as its factorization.

541486721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 541486721 is about 23269.8672321094. The cubic root of 541486721 is about 815.0719301187.

The spelling of 541486721 in words is "five hundred forty-one million, four hundred eighty-six thousand, seven hundred twenty-one".