513197 has 4 divisors (see below), whose sum is σ = 525756. Its totient is φ = 500640.

The previous prime is 513173. The next prime is 513203. The reversal of 513197 is 791315.

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

It can be written as a sum of positive squares in 2 ways, for example, as 249001 + 264196 = 499^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 513197 - 2¹² = 509101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6218 + ... + 6299.

It is an arithmetic number, because the mean of its divisors is an integer number (131439).

2⁵¹³¹⁹⁷ is an apocalyptic number.

It is an amenable number.

513197 is a deficient number, since it is larger than the sum of its proper divisors (12559).

513197 is a wasteful number, since it uses less digits than its factorization.

513197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12558.

The product of its digits is 945, while the sum is 26.

The square root of 513197 is about 716.3776936784. The cubic root of 513197 is about 80.0622952287.

The spelling of 513197 in words is "five hundred thirteen thousand, one hundred ninety-seven".