259198343 has 2 divisors, whose sum is σ = 259198344. Its totient is φ = 259198342.

The previous prime is 259198327. The next prime is 259198363. The reversal of 259198343 is 343891952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 259198343 - 2⁴ = 259198327 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 259198294 and 259198303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259198363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129599171 + 129599172.

It is an arithmetic number, because the mean of its divisors is an integer number (129599172).

Almost surely, 2^259198343 is an apocalyptic number.

259198343 is a deficient number, since it is larger than the sum of its proper divisors (1).

259198343 is an equidigital number, since it uses as much as digits as its factorization.

259198343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 259198343 is about 16099.6379772963. The cubic root of 259198343 is about 637.5937828452.

The spelling of 259198343 in words is "two hundred fifty-nine million, one hundred ninety-eight thousand, three hundred forty-three".