541147421 has 2 divisors, whose sum is σ = 541147422. Its totient is φ = 541147420.

The previous prime is 541147403. The next prime is 541147429. The reversal of 541147421 is 124741145.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519338521 + 21808900 = 22789^2 + 4670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-541147421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541147429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270573710 + 270573711.

It is an arithmetic number, because the mean of its divisors is an integer number (270573711).

Almost surely, 2^541147421 is an apocalyptic number.

It is an amenable number.

541147421 is a deficient number, since it is larger than the sum of its proper divisors (1).

541147421 is an equidigital number, since it uses as much as digits as its factorization.

541147421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4480, while the sum is 29.

The square root of 541147421 is about 23262.5755452830. The cubic root of 541147421 is about 814.9016509725.

Adding to 541147421 its reverse (124741145), we get a palindrome (665888566).

The spelling of 541147421 in words is "five hundred forty-one million, one hundred forty-seven thousand, four hundred twenty-one".