513126497 has 8 divisors (see below), whose sum is σ = 552776616. Its totient is φ = 473501952.

The previous prime is 513126479. The next prime is 513126503. The reversal of 513126497 is 794621315.

It can be written as a sum of positive squares in 4 ways, for example, as 63856081 + 449270416 = 7991^2 + 21196^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513126497 - 2⁸ = 513126241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513126497.

It is not an unprimeable number, because it can be changed into a prime (513126437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64313 + ... + 71849.

It is an arithmetic number, because the mean of its divisors is an integer number (69097077).

Almost surely, 2^513126497 is an apocalyptic number.

It is an amenable number.

513126497 is a deficient number, since it is larger than the sum of its proper divisors (39650119).

513126497 is a wasteful number, since it uses less digits than its factorization.

513126497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12787.

The product of its digits is 45360, while the sum is 38.

The square root of 513126497 is about 22652.2956231813. The cubic root of 513126497 is about 800.5862874164.

The spelling of 513126497 in words is "five hundred thirteen million, one hundred twenty-six thousand, four hundred ninety-seven".