515115412 has 12 divisors (see below), whose sum is σ = 1030230880. Its totient is φ = 220763736.

The previous prime is 515115401. The next prime is 515115413. The reversal of 515115412 is 214511515.

515115412 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515115413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9198462 + ... + 9198517.

Almost surely, 2^515115412 is an apocalyptic number.

It is an amenable number.

515115412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

515115412 is a wasteful number, since it uses less digits than its factorization.

515115412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18396990 (or 18396988 counting only the distinct ones).

The product of its digits is 1000, while the sum is 25.

The square root of 515115412 is about 22696.1541235514. The cubic root of 515115412 is about 801.6193304163.

Adding to 515115412 its reverse (214511515), we get a palindrome (729626927).

The spelling of 515115412 in words is "five hundred fifteen million, one hundred fifteen thousand, four hundred twelve".