516105109 has 8 divisors (see below), whose sum is σ = 563420312. Its totient is φ = 469877760.

The previous prime is 516105067. The next prime is 516105133. The reversal of 516105109 is 901501615.

It can be written as a sum of positive squares in 4 ways, for example, as 13359025 + 502746084 = 3655^2 + 22422^2 .

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 516105109 - 2¹⁵ = 516072341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516105169) 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, 270972 + ... + 272869.

It is an arithmetic number, because the mean of its divisors is an integer number (70427539).

Almost surely, 2^516105109 is an apocalyptic number.

It is an amenable number.

516105109 is a deficient number, since it is larger than the sum of its proper divisors (47315203).

516105109 is a wasteful number, since it uses less digits than its factorization.

516105109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543927.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 516105109 is about 22717.9468482519. The cubic root of 516105109 is about 802.1323887021.

It can be divided in two parts, 516 and 105109, that added together give a square (105625 = 325²).

The spelling of 516105109 in words is "five hundred sixteen million, one hundred five thousand, one hundred nine".