515065117 has 12 divisors (see below), whose sum is σ = 599543100. Its totient is φ = 441200256.

The previous prime is 515065097. The next prime is 515065127. The reversal of 515065117 is 711560515.

It can be written as a sum of positive squares in 2 ways, for example, as 254274916 + 260790201 = 15946^2 + 16149^2 .

It is not a de Polignac number, because 515065117 - 2¹¹ = 515063069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515065127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116259 + ... + 120607.

It is an arithmetic number, because the mean of its divisors is an integer number (49961925).

Almost surely, 2^515065117 is an apocalyptic number.

It is an amenable number.

515065117 is a deficient number, since it is larger than the sum of its proper divisors (84477983).

515065117 is a wasteful number, since it uses less digits than its factorization.

515065117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780 (or 6773 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 31.

The square root of 515065117 is about 22695.0460894002. The cubic root of 515065117 is about 801.5932399807.

The spelling of 515065117 in words is "five hundred fifteen million, sixty-five thousand, one hundred seventeen".