513012122 has 32 divisors (see below), whose sum is σ = 943228800. Its totient is φ = 204355008.

The previous prime is 513012119. The next prime is 513012161. The reversal of 513012122 is 221210315.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 513012122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4097 + ... + 32292.

It is an arithmetic number, because the mean of its divisors is an integer number (29475900).

Almost surely, 2^513012122 is an apocalyptic number.

513012122 is a deficient number, since it is larger than the sum of its proper divisors (430216678).

513012122 is a wasteful number, since it uses less digits than its factorization.

513012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36470.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 513012122 is about 22649.7709039187. The cubic root of 513012122 is about 800.5267999012.

Adding to 513012122 its reverse (221210315), we get a palindrome (734222437).

The spelling of 513012122 in words is "five hundred thirteen million, twelve thousand, one hundred twenty-two".