541613021 has 2 divisors, whose sum is σ = 541613022. Its totient is φ = 541613020.

The previous prime is 541613011. The next prime is 541613029. The reversal of 541613021 is 120316145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 531302500 + 10310521 = 23050^2 + 3211^2 .

It is a cyclic number.

It is not a de Polignac number, because 541613021 - 2¹⁰ = 541611997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541613029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270806510 + 270806511.

It is an arithmetic number, because the mean of its divisors is an integer number (270806511).

Almost surely, 2^541613021 is an apocalyptic number.

It is an amenable number.

541613021 is a deficient number, since it is larger than the sum of its proper divisors (1).

541613021 is an equidigital number, since it uses as much as digits as its factorization.

541613021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 541613021 is about 23272.5808839501. The cubic root of 541613021 is about 815.1352961430.

Adding to 541613021 its reverse (120316145), we get a palindrome (661929166).

The spelling of 541613021 in words is "five hundred forty-one million, six hundred thirteen thousand, twenty-one".