259953139 has 2 divisors, whose sum is σ = 259953140. Its totient is φ = 259953138.

The previous prime is 259953091. The next prime is 259953203. The reversal of 259953139 is 931359952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 259953139 - 2¹⁵ = 259920371 is a prime.

It is not a weakly prime, because it can be changed into another prime (259053139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129976569 + 129976570.

It is an arithmetic number, because the mean of its divisors is an integer number (129976570).

Almost surely, 2^259953139 is an apocalyptic number.

259953139 is a deficient number, since it is larger than the sum of its proper divisors (1).

259953139 is an equidigital number, since it uses as much as digits as its factorization.

259953139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 328050, while the sum is 46.

The square root of 259953139 is about 16123.0623331922. The cubic root of 259953139 is about 638.2120826418.

The spelling of 259953139 in words is "two hundred fifty-nine million, nine hundred fifty-three thousand, one hundred thirty-nine".