513729459 has 12 divisors (see below), whose sum is σ = 769537496. Its totient is φ = 342486144.

The previous prime is 513729431. The next prime is 513729473. The reversal of 513729459 is 954927315.

It is a happy number.

It is not a de Polignac number, because 513729459 - 2¹¹ = 513727411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513729479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1056814 + ... + 1057299.

Almost surely, 2^513729459 is an apocalyptic number.

513729459 is a deficient number, since it is larger than the sum of its proper divisors (255808037).

513729459 is an equidigital number, since it uses as much as digits as its factorization.

513729459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114128 (or 2114116 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 513729459 is about 22665.6007862135. The cubic root of 513729459 is about 800.8997475843.

It can be divided in two parts, 5137 and 29459, that added together give a square (34596 = 186²).

The spelling of 513729459 in words is "five hundred thirteen million, seven hundred twenty-nine thousand, four hundred fifty-nine".