541045021 has 4 divisors (see below), whose sum is σ = 590230944. Its totient is φ = 491859100.

The previous prime is 541045013. The next prime is 541045067. The reversal of 541045021 is 120540145.

541045021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 541045021 - 2³ = 541045013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 541044983 and 541045001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541045081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24592945 + ... + 24592966.

It is an arithmetic number, because the mean of its divisors is an integer number (147557736).

Almost surely, 2^541045021 is an apocalyptic number.

It is an amenable number.

541045021 is a deficient number, since it is larger than the sum of its proper divisors (49185923).

541045021 is a wasteful number, since it uses less digits than its factorization.

541045021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49185922.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 541045021 is about 23260.3744810783. The cubic root of 541045021 is about 814.8502471160.

Adding to 541045021 its reverse (120540145), we get a palindrome (661585166).

The spelling of 541045021 in words is "five hundred forty-one million, forty-five thousand, twenty-one".