513245 has 8 divisors (see below), whose sum is σ = 642816. Its totient is φ = 392656.

The previous prime is 513239. The next prime is 513257. The reversal of 513245 is 542315.

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

It is not a de Polignac number, because 513245 - 2⁸ = 512989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2117 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (80352).

2⁵¹³²⁴⁵ is an apocalyptic number.

It is an amenable number.

513245 is a deficient number, since it is larger than the sum of its proper divisors (129571).

513245 is a wasteful number, since it uses less digits than its factorization.

513245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491.

The product of its digits is 600, while the sum is 20.

The square root of 513245 is about 716.4111947757. The cubic root of 513245 is about 80.0647912620.

The spelling of 513245 in words is "five hundred thirteen thousand, two hundred forty-five".