513171043 has 16 divisors (see below), whose sum is σ = 645096960. Its totient is φ = 399866280.

The previous prime is 513171017. The next prime is 513171077. The reversal of 513171043 is 340171315.

It is not a de Polignac number, because 513171043 - 2⁹ = 513170531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513170999 and 513171017.

It is not an unprimeable number, because it can be changed into a prime (513141043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18223 + ... + 36856.

It is an arithmetic number, because the mean of its divisors is an integer number (40318560).

Almost surely, 2^513171043 is an apocalyptic number.

513171043 is a deficient number, since it is larger than the sum of its proper divisors (131925917).

513171043 is an equidigital number, since it uses as much as digits as its factorization.

513171043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55119 (or 55097 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 513171043 is about 22653.2788575959. The cubic root of 513171043 is about 800.6094538188.

The spelling of 513171043 in words is "five hundred thirteen million, one hundred seventy-one thousand, forty-three".