516139268 has 12 divisors (see below), whose sum is σ = 906760092. Its totient is φ = 257064960.

The previous prime is 516139259. The next prime is 516139279. The reversal of 516139268 is 862931615.

It can be written as a sum of positive squares in 2 ways, for example, as 463024324 + 53114944 = 21518^2 + 7288^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250013 + ... + 252068.

It is an arithmetic number, because the mean of its divisors is an integer number (75563341).

Almost surely, 2^516139268 is an apocalyptic number.

It is an amenable number.

516139268 is a deficient number, since it is larger than the sum of its proper divisors (390620824).

516139268 is a wasteful number, since it uses less digits than its factorization.

516139268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502342 (or 502340 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 516139268 is about 22718.6986423078. The cubic root of 516139268 is about 802.1500849913.

The spelling of 516139268 in words is "five hundred sixteen million, one hundred thirty-nine thousand, two hundred sixty-eight".