259972039 has 2 divisors, whose sum is σ = 259972040. Its totient is φ = 259972038.

The previous prime is 259971947. The next prime is 259972043. The reversal of 259972039 is 930279952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259972039 - 2⁷ = 259971911 is a prime.

It is a super-2 number, since 2×259972039² = 135170922123635042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 259972039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259972099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129986019 + 129986020.

It is an arithmetic number, because the mean of its divisors is an integer number (129986020).

Almost surely, 2^259972039 is an apocalyptic number.

259972039 is a deficient number, since it is larger than the sum of its proper divisors (1).

259972039 is an equidigital number, since it uses as much as digits as its factorization.

259972039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 259972039 is about 16123.6484394817. The cubic root of 259972039 is about 638.2275494244.

The spelling of 259972039 in words is "two hundred fifty-nine million, nine hundred seventy-two thousand, thirty-nine".