513403612 has 6 divisors (see below), whose sum is σ = 898456328. Its totient is φ = 256701804.

The previous prime is 513403609. The next prime is 513403643. The reversal of 513403612 is 216304315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64175448 + ... + 64175455.

Almost surely, 2^513403612 is an apocalyptic number.

It is an amenable number.

513403612 is a deficient number, since it is larger than the sum of its proper divisors (385052716).

513403612 is a wasteful number, since it uses less digits than its factorization.

513403612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128350907 (or 128350905 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 513403612 is about 22658.4115065465. The cubic root of 513403612 is about 800.7303808934.

Adding to 513403612 its reverse (216304315), we get a palindrome (729707927).

The spelling of 513403612 in words is "five hundred thirteen million, four hundred three thousand, six hundred twelve".