259099 has 2 divisors, whose sum is σ = 259100. Its totient is φ = 259098.

The previous prime is 259033. The next prime is 259121. The reversal of 259099 is 990952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259099 - 2⁷ = 258971 is a prime.

It is not a weakly prime, because it can be changed into another prime (259009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129549 + 129550.

It is an arithmetic number, because the mean of its divisors is an integer number (129550).

259099 is a Friedman number, since it can be written as 509^2+9+9, using all its digits and the basic arithmetic operations.

2²⁵⁹⁰⁹⁹ is an apocalyptic number.

259099 is a deficient number, since it is larger than the sum of its proper divisors (1).

259099 is an equidigital number, since it uses as much as digits as its factorization.

259099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 259099 is about 509.0176814218. The cubic root of 259099 is about 63.7512315538.

It can be divided in two parts, 25 and 9099, that multiplied together give a triangular number (227475 = T₆₇₄).

The spelling of 259099 in words is "two hundred fifty-nine thousand, ninety-nine".