541683221 has 2 divisors, whose sum is σ = 541683222. Its totient is φ = 541683220.

The previous prime is 541683193. The next prime is 541683227. The reversal of 541683221 is 122386145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 368102596 + 173580625 = 19186^2 + 13175^2 .

It is a cyclic number.

It is not a de Polignac number, because 541683221 - 2¹⁸ = 541421077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541683227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270841610 + 270841611.

It is an arithmetic number, because the mean of its divisors is an integer number (270841611).

Almost surely, 2^541683221 is an apocalyptic number.

It is an amenable number.

541683221 is a deficient number, since it is larger than the sum of its proper divisors (1).

541683221 is an equidigital number, since it uses as much as digits as its factorization.

541683221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 541683221 is about 23274.0890476942. The cubic root of 541683221 is about 815.1705119542.

The spelling of 541683221 in words is "five hundred forty-one million, six hundred eighty-three thousand, two hundred twenty-one".