259949 has 2 divisors, whose sum is σ = 259950. Its totient is φ = 259948.

The previous prime is 259943. The next prime is 259967. The reversal of 259949 is 949952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243049 + 16900 = 493^2 + 130^2 .

It is a cyclic number.

It is not a de Polignac number, because 259949 - 2⁴ = 259933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129974 + 129975.

It is an arithmetic number, because the mean of its divisors is an integer number (129975).

2²⁵⁹⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

259949 is a deficient number, since it is larger than the sum of its proper divisors (1).

259949 is an equidigital number, since it uses as much as digits as its factorization.

259949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 38.

The square root of 259949 is about 509.8519392922. The cubic root of 259949 is about 63.8208695398.

The spelling of 259949 in words is "two hundred fifty-nine thousand, nine hundred forty-nine".