516017121 has 16 divisors (see below), whose sum is σ = 720260736. Its totient is φ = 327989376.

The previous prime is 516017113. The next prime is 516017171. The reversal of 516017121 is 121710615.

It is not a de Polignac number, because 516017121 - 2³ = 516017113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 516017091 and 516017100.

It is not an unprimeable number, because it can be changed into a prime (516017101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9651 + ... + 33543.

It is an arithmetic number, because the mean of its divisors is an integer number (45016296).

Almost surely, 2^516017121 is an apocalyptic number.

It is an amenable number.

516017121 is a deficient number, since it is larger than the sum of its proper divisors (204243615).

516017121 is a wasteful number, since it uses less digits than its factorization.

516017121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24232.

The product of its (nonzero) digits is 420, while the sum is 24.

The square root of 516017121 is about 22716.0102350743. The cubic root of 516017121 is about 802.0868023577.

Adding to 516017121 its reverse (121710615), we get a palindrome (637727736).

The spelling of 516017121 in words is "five hundred sixteen million, seventeen thousand, one hundred twenty-one".