516979147 has 2 divisors, whose sum is σ = 516979148. Its totient is φ = 516979146.

The previous prime is 516979139. The next prime is 516979193. The reversal of 516979147 is 741979615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 516979147 - 2³ = 516979139 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516979147.

It is not a weakly prime, because it can be changed into another prime (516919147) 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 as a sum of consecutive naturals, namely, 258489573 + 258489574.

It is an arithmetic number, because the mean of its divisors is an integer number (258489574).

Almost surely, 2^516979147 is an apocalyptic number.

516979147 is a deficient number, since it is larger than the sum of its proper divisors (1).

516979147 is an equidigital number, since it uses as much as digits as its factorization.

516979147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 49.

The square root of 516979147 is about 22737.1754402344. The cubic root of 516979147 is about 802.5849443117.

The spelling of 516979147 in words is "five hundred sixteen million, nine hundred seventy-nine thousand, one hundred forty-seven".