513043541 has 2 divisors, whose sum is σ = 513043542. Its totient is φ = 513043540.

The previous prime is 513043523. The next prime is 513043547. The reversal of 513043541 is 145340315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461347441 + 51696100 = 21479^2 + 7190^2 .

It is a cyclic number.

It is not a de Polignac number, because 513043541 - 2⁶ = 513043477 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513043541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513043547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256521770 + 256521771.

It is an arithmetic number, because the mean of its divisors is an integer number (256521771).

Almost surely, 2^513043541 is an apocalyptic number.

It is an amenable number.

513043541 is a deficient number, since it is larger than the sum of its proper divisors (1).

513043541 is an equidigital number, since it uses as much as digits as its factorization.

513043541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 513043541 is about 22650.4644764738. The cubic root of 513043541 is about 800.5431420999.

Adding to 513043541 its reverse (145340315), we get a palindrome (658383856).

It can be divided in two parts, 51304 and 3541, that added together give a palindrome (54845).

The spelling of 513043541 in words is "five hundred thirteen million, forty-three thousand, five hundred forty-one".