541512421 has 2 divisors, whose sum is σ = 541512422. Its totient is φ = 541512420.

The previous prime is 541512383. The next prime is 541512449. The reversal of 541512421 is 124215145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502387396 + 39125025 = 22414^2 + 6255^2 .

It is a cyclic number.

It is not a de Polignac number, because 541512421 - 2¹⁷ = 541381349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541510421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270756210 + 270756211.

It is an arithmetic number, because the mean of its divisors is an integer number (270756211).

Almost surely, 2^541512421 is an apocalyptic number.

It is an amenable number.

541512421 is a deficient number, since it is larger than the sum of its proper divisors (1).

541512421 is an equidigital number, since it uses as much as digits as its factorization.

541512421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1600, while the sum is 25.

The square root of 541512421 is about 23270.4194418579. The cubic root of 541512421 is about 815.0848248746.

Adding to 541512421 its reverse (124215145), we get a palindrome (665727566).

It can be divided in two parts, 5415124 and 21, that added together give a palindrome (5415145).

The spelling of 541512421 in words is "five hundred forty-one million, five hundred twelve thousand, four hundred twenty-one".