512245213 has 4 divisors (see below), whose sum is σ = 534516768. Its totient is φ = 489973660.

The previous prime is 512245211. The next prime is 512245231. The reversal of 512245213 is 312542215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312542215 = 5 ⋅62508443.

It is a cyclic number.

It is not a de Polignac number, because 512245213 - 2¹ = 512245211 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 (512245211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11135743 + ... + 11135788.

It is an arithmetic number, because the mean of its divisors is an integer number (133629192).

Almost surely, 2^512245213 is an apocalyptic number.

It is an amenable number.

512245213 is a deficient number, since it is larger than the sum of its proper divisors (22271555).

512245213 is a wasteful number, since it uses less digits than its factorization.

512245213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22271554.

The product of its digits is 2400, while the sum is 25.

The square root of 512245213 is about 22632.8348423259. The cubic root of 512245213 is about 800.1276947207.

Adding to 512245213 its reverse (312542215), we get a palindrome (824787428).

The spelling of 512245213 in words is "five hundred twelve million, two hundred forty-five thousand, two hundred thirteen".