513504134 has 24 divisors (see below), whose sum is σ = 909895032. Its totient is φ = 215454720.

The previous prime is 513504113. The next prime is 513504143. The reversal of 513504134 is 431405315.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 65339 + ... + 72774.

It is an arithmetic number, because the mean of its divisors is an integer number (37912293).

Almost surely, 2^513504134 is an apocalyptic number.

513504134 is a deficient number, since it is larger than the sum of its proper divisors (396390898).

513504134 is a wasteful number, since it uses less digits than its factorization.

513504134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138152 (or 138139 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 513504134 is about 22660.6296029038. The cubic root of 513504134 is about 800.7826372240.

Adding to 513504134 its reverse (431405315), we get a palindrome (944909449).

The spelling of 513504134 in words is "five hundred thirteen million, five hundred four thousand, one hundred thirty-four".