518001161 has 16 divisors (see below), whose sum is σ = 572054400. Its totient is φ = 467107200.

The previous prime is 518001157. The next prime is 518001163. The reversal of 518001161 is 161100815.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 518001161 - 2² = 518001157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (518001163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32501 + ... + 45741.

It is an arithmetic number, because the mean of its divisors is an integer number (35753400).

Almost surely, 2^518001161 is an apocalyptic number.

It is an amenable number.

518001161 is a deficient number, since it is larger than the sum of its proper divisors (54053239).

518001161 is a wasteful number, since it uses less digits than its factorization.

518001161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13360.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 518001161 is about 22759.6388591735. The cubic root of 518001161 is about 803.1134718346.

Adding to 518001161 its reverse (161100815), we get a palindrome (679101976).

The spelling of 518001161 in words is "five hundred eighteen million, one thousand, one hundred sixty-one".