258306943 has 2 divisors, whose sum is σ = 258306944. Its totient is φ = 258306942.

The previous prime is 258306931. The next prime is 258306949. The reversal of 258306943 is 349603852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258306943 - 2⁹ = 258306431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258306896 and 258306905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258306949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129153471 + 129153472.

It is an arithmetic number, because the mean of its divisors is an integer number (129153472).

Almost surely, 2^258306943 is an apocalyptic number.

258306943 is a deficient number, since it is larger than the sum of its proper divisors (1).

258306943 is an equidigital number, since it uses as much as digits as its factorization.

258306943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 258306943 is about 16071.9302823276. The cubic root of 258306943 is about 636.8620344972.

The spelling of 258306943 in words is "two hundred fifty-eight million, three hundred six thousand, nine hundred forty-three".