541715509 has 2 divisors, whose sum is σ = 541715510. Its totient is φ = 541715508.

The previous prime is 541715501. The next prime is 541715513. The reversal of 541715509 is 905517145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527988484 + 13727025 = 22978^2 + 3705^2 .

It is a cyclic number.

It is not a de Polignac number, because 541715509 - 2³ = 541715501 is a prime.

It is a super-2 number, since 2×541715509² = 586911385382258162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541715501) 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, 270857754 + 270857755.

It is an arithmetic number, because the mean of its divisors is an integer number (270857755).

Almost surely, 2^541715509 is an apocalyptic number.

It is an amenable number.

541715509 is a deficient number, since it is larger than the sum of its proper divisors (1).

541715509 is an equidigital number, since it uses as much as digits as its factorization.

541715509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 541715509 is about 23274.7826842701. The cubic root of 541715509 is about 815.1867081992.

The spelling of 541715509 in words is "five hundred forty-one million, seven hundred fifteen thousand, five hundred nine".