259538743 has 2 divisors, whose sum is σ = 259538744. Its totient is φ = 259538742.

The previous prime is 259538731. The next prime is 259538749. The reversal of 259538743 is 347835952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 259538743 - 2¹⁷ = 259407671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 259538693 and 259538702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259538749) 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, 129769371 + 129769372.

It is an arithmetic number, because the mean of its divisors is an integer number (129769372).

Almost surely, 2^259538743 is an apocalyptic number.

259538743 is a deficient number, since it is larger than the sum of its proper divisors (1).

259538743 is an equidigital number, since it uses as much as digits as its factorization.

259538743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 46.

The square root of 259538743 is about 16110.2061749687. The cubic root of 259538743 is about 637.8727738042.

It can be divided in two parts, 259538 and 743, that added together give a triangular number (260281 = T₇₂₁).

The spelling of 259538743 in words is "two hundred fifty-nine million, five hundred thirty-eight thousand, seven hundred forty-three".