513126103 has 8 divisors (see below), whose sum is σ = 617294720. Its totient is φ = 416673720.

The previous prime is 513126091. The next prime is 513126137. The reversal of 513126103 is 301621315.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513126103 - 2²⁵ = 479571671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513126403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1928913 + ... + 1929178.

It is an arithmetic number, because the mean of its divisors is an integer number (77161840).

Almost surely, 2^513126103 is an apocalyptic number.

513126103 is a deficient number, since it is larger than the sum of its proper divisors (104168617).

513126103 is a wasteful number, since it uses less digits than its factorization.

513126103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858117.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 513126103 is about 22652.2869264893. The cubic root of 513126103 is about 800.5860825084.

Adding to 513126103 its reverse (301621315), we get a palindrome (814747418).

The spelling of 513126103 in words is "five hundred thirteen million, one hundred twenty-six thousand, one hundred three".