541287749 has 2 divisors, whose sum is σ = 541287750. Its totient is φ = 541287748.

The previous prime is 541287731. The next prime is 541287757. The reversal of 541287749 is 947782145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 473932900 + 67354849 = 21770^2 + 8207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-541287749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541287779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270643874 + 270643875.

It is an arithmetic number, because the mean of its divisors is an integer number (270643875).

Almost surely, 2^541287749 is an apocalyptic number.

It is an amenable number.

541287749 is a deficient number, since it is larger than the sum of its proper divisors (1).

541287749 is an equidigital number, since it uses as much as digits as its factorization.

541287749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 47.

The square root of 541287749 is about 23265.5915248248. The cubic root of 541287749 is about 814.9720838042.

The spelling of 541287749 in words is "five hundred forty-one million, two hundred eighty-seven thousand, seven hundred forty-nine".