513206 has 4 divisors (see below), whose sum is σ = 769812. Its totient is φ = 256602.

The previous prime is 513203. The next prime is 513239. The reversal of 513206 is 602315.

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

It is a super-4 number, since 4×513206⁴ (a number of 24 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128300 + ... + 128303.

It is an arithmetic number, because the mean of its divisors is an integer number (192453).

2⁵¹³²⁰⁶ is an apocalyptic number.

513206 is a deficient number, since it is larger than the sum of its proper divisors (256606).

513206 is a wasteful number, since it uses less digits than its factorization.

513206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256605.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 513206 is about 716.3839752535. The cubic root of 513206 is about 80.0627632468.

The spelling of 513206 in words is "five hundred thirteen thousand, two hundred six".