516786145 has 16 divisors (see below), whose sum is σ = 657849600. Its totient is φ = 388382464.

The previous prime is 516786143. The next prime is 516786161. The reversal of 516786145 is 541687615.

It is a cyclic number.

It is not a de Polignac number, because 516786145 - 2¹ = 516786143 is a prime.

It is a super-2 number, since 2×516786145² = 534135839327922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (516786143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42456 + ... + 53254.

It is an arithmetic number, because the mean of its divisors is an integer number (41115600).

Almost surely, 2^516786145 is an apocalyptic number.

It is an amenable number.

516786145 is a deficient number, since it is larger than the sum of its proper divisors (141063455).

516786145 is a wasteful number, since it uses less digits than its factorization.

516786145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11384.

The product of its digits is 201600, while the sum is 43.

The square root of 516786145 is about 22732.9308493208. The cubic root of 516786145 is about 802.4850564791.

The spelling of 516786145 in words is "five hundred sixteen million, seven hundred eighty-six thousand, one hundred forty-five".