515116434 has 32 divisors (see below), whose sum is σ = 1199629440. Its totient is φ = 144398592.

The previous prime is 515116423. The next prime is 515116457. The reversal of 515116434 is 434611515.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113479 + ... + 117930.

It is an arithmetic number, because the mean of its divisors is an integer number (37488420).

Almost surely, 2^515116434 is an apocalyptic number.

515116434 is an abundant number, since it is smaller than the sum of its proper divisors (684513006).

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

515116434 is a wasteful number, since it uses less digits than its factorization.

515116434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231474.

The product of its digits is 7200, while the sum is 30.

The square root of 515116434 is about 22696.1766383680. The cubic root of 515116434 is about 801.6198605593.

Adding to 515116434 its reverse (434611515), we get a palindrome (949727949).

The spelling of 515116434 in words is "five hundred fifteen million, one hundred sixteen thousand, four hundred thirty-four".