516091 has 2 divisors, whose sum is σ = 516092. Its totient is φ = 516090.

The previous prime is 516077. The next prime is 516127. The reversal of 516091 is 190615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 516091 - 2⁹ = 515579 is a prime.

It is a Chen prime.

It is equal to p₄₂₇₄₅ and since 516091 and 42745 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (516391) 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, 258045 + 258046.

It is an arithmetic number, because the mean of its divisors is an integer number (258046).

2⁵¹⁶⁰⁹¹ is an apocalyptic number.

516091 is a deficient number, since it is larger than the sum of its proper divisors (1).

516091 is an equidigital number, since it uses as much as digits as its factorization.

516091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 516091 is about 718.3947382881. The cubic root of 516091 is about 80.2125079216.

The spelling of 516091 in words is "five hundred sixteen thousand, ninety-one".