513899 has 2 divisors, whose sum is σ = 513900. Its totient is φ = 513898.

The previous prime is 513881. The next prime is 513917. The reversal of 513899 is 998315.

It is a balanced prime because it is at equal distance from previous prime (513881) and next prime (513917).

It is a cyclic number.

It is not a de Polignac number, because 513899 - 2¹⁶ = 448363 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a nialpdrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 513899.

It is not a weakly prime, because it can be changed into another prime (513829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256949 + 256950.

It is an arithmetic number, because the mean of its divisors is an integer number (256950).

2⁵¹³⁸⁹⁹ is an apocalyptic number.

513899 is a deficient number, since it is larger than the sum of its proper divisors (1).

513899 is an equidigital number, since it uses as much as digits as its factorization.

513899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 35.

The square root of 513899 is about 716.8674912423. The cubic root of 513899 is about 80.0987842208.

Subtracting 513899 from its reverse (998315), we obtain a square (484416 = 696²).

The spelling of 513899 in words is "five hundred thirteen thousand, eight hundred ninety-nine".