515143253134 has 24 divisors (see below), whose sum is σ = 820904143248. Its totient is φ = 242402135040.

The previous prime is 515143253129. The next prime is 515143253153. The reversal of 515143253134 is 431352341515.

It is a junction number, because it is equal to n+sod(n) for n = 515143253093 and 515143253102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10559422 + ... + 10608094.

It is an arithmetic number, because the mean of its divisors is an integer number (34204339302).

Almost surely, 2^515143253134 is an apocalyptic number.

515143253134 is a deficient number, since it is larger than the sum of its proper divisors (305760890114).

515143253134 is a wasteful number, since it uses less digits than its factorization.

515143253134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67020 (or 67003 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

Adding to 515143253134 its reverse (431352341515), we get a palindrome (946495594649).

The spelling of 515143253134 in words is "five hundred fifteen billion, one hundred forty-three million, two hundred fifty-three thousand, one hundred thirty-four".