541660521 has 8 divisors (see below), whose sum is σ = 747118080. Its totient is φ = 348654992.

The previous prime is 541660517. The next prime is 541660547. The reversal of 541660521 is 125066145.

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

It is a cyclic number.

It is not a de Polignac number, because 541660521 - 2² = 541660517 is a prime.

It is a super-2 number, since 2×541660521² = 586792240019982882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (541668521) 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 7 ways as a sum of consecutive naturals, for example, 3112905 + ... + 3113078.

It is an arithmetic number, because the mean of its divisors is an integer number (93389760).

Almost surely, 2^541660521 is an apocalyptic number.

It is an amenable number.

541660521 is a deficient number, since it is larger than the sum of its proper divisors (205457559).

541660521 is a wasteful number, since it uses less digits than its factorization.

541660521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226015.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 541660521 is about 23273.6013758077. The cubic root of 541660521 is about 815.1591248381.

The spelling of 541660521 in words is "five hundred forty-one million, six hundred sixty thousand, five hundred twenty-one".