512122113 has 6 divisors (see below), whose sum is σ = 739731954. Its totient is φ = 341414736.

The previous prime is 512122111. The next prime is 512122129. The reversal of 512122113 is 311221215.

It can be written as a sum of positive squares in only one way, i.e., 484748289 + 27373824 = 22017^2 + 5232^2 .

It is not a de Polignac number, because 512122113 - 2¹ = 512122111 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (512122111) 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 5 ways as a sum of consecutive naturals, for example, 28451220 + ... + 28451237.

It is an arithmetic number, because the mean of its divisors is an integer number (123288659).

Almost surely, 2^512122113 is an apocalyptic number.

It is an amenable number.

512122113 is a deficient number, since it is larger than the sum of its proper divisors (227609841).

512122113 is a wasteful number, since it uses less digits than its factorization.

512122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56902463 (or 56902460 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 512122113 is about 22630.1151786729. The cubic root of 512122113 is about 800.0635954652.

Adding to 512122113 its reverse (311221215), we get a palindrome (823343328).

The spelling of 512122113 in words is "five hundred twelve million, one hundred twenty-two thousand, one hundred thirteen".