513734497 has 4 divisors (see below), whose sum is σ = 522156436. Its totient is φ = 505312560.

The previous prime is 513734491. The next prime is 513734503. The reversal of 513734497 is 794437315.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (513734491) and next prime (513734503).

It can be written as a sum of positive squares in 2 ways, for example, as 115971361 + 397763136 = 10769^2 + 19944^2 .

It is a cyclic number.

It is not a de Polignac number, because 513734497 - 2³ = 513734489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513734491) 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 3 ways as a sum of consecutive naturals, for example, 4210878 + ... + 4210999.

It is an arithmetic number, because the mean of its divisors is an integer number (130539109).

Almost surely, 2^513734497 is an apocalyptic number.

It is an amenable number.

513734497 is a deficient number, since it is larger than the sum of its proper divisors (8421939).

513734497 is an equidigital number, since it uses as much as digits as its factorization.

513734497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8421938.

The product of its digits is 317520, while the sum is 43.

The square root of 513734497 is about 22665.7119235201. The cubic root of 513734497 is about 800.9023656418.

The spelling of 513734497 in words is "five hundred thirteen million, seven hundred thirty-four thousand, four hundred ninety-seven".