513018412 has 12 divisors (see below), whose sum is σ = 898478280. Its totient is φ = 256310336.

The previous prime is 513018409. The next prime is 513018421. The reversal of 513018412 is 214810315.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43837 + ... + 54292.

It is an arithmetic number, because the mean of its divisors is an integer number (74873190).

Almost surely, 2^513018412 is an apocalyptic number.

It is an amenable number.

513018412 is a deficient number, since it is larger than the sum of its proper divisors (385459868).

513018412 is a wasteful number, since it uses less digits than its factorization.

513018412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99440 (or 99438 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 513018412 is about 22649.9097569946. The cubic root of 513018412 is about 800.5300716192.

Adding to 513018412 its reverse (214810315), we get a palindrome (727828727).

The spelling of 513018412 in words is "five hundred thirteen million, eighteen thousand, four hundred twelve".