513403345 has 32 divisors (see below), whose sum is σ = 763193088. Its totient is φ = 322852608.

The previous prime is 513403339. The next prime is 513403381. The reversal of 513403345 is 543304315.

It is not a de Polignac number, because 513403345 - 2¹⁹ = 512879057 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 67842 + ... + 75028.

It is an arithmetic number, because the mean of its divisors is an integer number (23849784).

Almost surely, 2^513403345 is an apocalyptic number.

It is an amenable number.

513403345 is a deficient number, since it is larger than the sum of its proper divisors (249789743).

513403345 is a wasteful number, since it uses less digits than its factorization.

513403345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7369.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 513403345 is about 22658.4056146941. The cubic root of 513403345 is about 800.7302420845.

The spelling of 513403345 in words is "five hundred thirteen million, four hundred three thousand, three hundred forty-five".