518134729 has 8 divisors (see below), whose sum is σ = 592347008. Its totient is φ = 443970720.

The previous prime is 518134723. The next prime is 518134733. The reversal of 518134729 is 927431815.

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 518134729 - 2¹³ = 518126537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 518134691 and 518134700.

It is not an unprimeable number, because it can be changed into a prime (518134723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14989 + ... + 35509.

It is an arithmetic number, because the mean of its divisors is an integer number (74043376).

Almost surely, 2^518134729 is an apocalyptic number.

It is an amenable number.

518134729 is a deficient number, since it is larger than the sum of its proper divisors (74212279).

518134729 is a wasteful number, since it uses less digits than its factorization.

518134729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24135.

The product of its digits is 60480, while the sum is 40.

The square root of 518134729 is about 22762.5729872526. The cubic root of 518134729 is about 803.1824942292.

The spelling of 518134729 in words is "five hundred eighteen million, one hundred thirty-four thousand, seven hundred twenty-nine".