513748 has 6 divisors (see below), whose sum is σ = 899066. Its totient is φ = 256872.

The previous prime is 513739. The next prime is 513749. The reversal of 513748 is 847315.

It can be written as a sum of positive squares in only one way, i.e., 300304 + 213444 = 548^2 + 462^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64215 + ... + 64222.

2⁵¹³⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

513748 is a deficient number, since it is larger than the sum of its proper divisors (385318).

513748 is a wasteful number, since it uses less digits than its factorization.

513748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128441 (or 128439 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 513748 is about 716.7621641800. The cubic root of 513748 is about 80.0909382554.

The spelling of 513748 in words is "five hundred thirteen thousand, seven hundred forty-eight".