518097137 has 4 divisors (see below), whose sum is σ = 518309616. Its totient is φ = 517884660.

The previous prime is 518097127. The next prime is 518097161. The reversal of 518097137 is 731790815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 518097137 - 2¹² = 518093041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 518097094 and 518097103.

It is not an unprimeable number, because it can be changed into a prime (518097127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102539 + ... + 107472.

It is an arithmetic number, because the mean of its divisors is an integer number (129577404).

Almost surely, 2^518097137 is an apocalyptic number.

It is an amenable number.

518097137 is a deficient number, since it is larger than the sum of its proper divisors (212479).

518097137 is a wasteful number, since it uses less digits than its factorization.

518097137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212478.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 518097137 is about 22761.7472308257. The cubic root of 518097137 is about 803.1630694445.

The spelling of 518097137 in words is "five hundred eighteen million, ninety-seven thousand, one hundred thirty-seven".