512245 has 8 divisors (see below), whose sum is σ = 626616. Its totient is φ = 401856.

The previous prime is 512207. The next prime is 512249. The reversal of 512245 is 542215.

It can be written as a sum of positive squares in 4 ways, for example, as 130321 + 381924 = 361^2 + 618^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512245 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 (512249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702 + ... + 1231.

It is an arithmetic number, because the mean of its divisors is an integer number (78327).

2⁵¹²²⁴⁵ is an apocalyptic number.

It is an amenable number.

512245 is a deficient number, since it is larger than the sum of its proper divisors (114371).

512245 is a wasteful number, since it uses less digits than its factorization.

512245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991.

The product of its digits is 400, while the sum is 19.

The square root of 512245 is about 715.7129312790. The cubic root of 512245 is about 80.0127583819.

It can be divided in two parts, 512 and 245, that added together give a palindrome (757).

The spelling of 512245 in words is "five hundred twelve thousand, two hundred forty-five".