258046643 has 2 divisors, whose sum is σ = 258046644. Its totient is φ = 258046642.

The previous prime is 258046639. The next prime is 258046667. The reversal of 258046643 is 346640852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258046643 - 2² = 258046639 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 258046597 and 258046606.

It is not a weakly prime, because it can be changed into another prime (258046603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129023321 + 129023322.

It is an arithmetic number, because the mean of its divisors is an integer number (129023322).

Almost surely, 2^258046643 is an apocalyptic number.

258046643 is a deficient number, since it is larger than the sum of its proper divisors (1).

258046643 is an equidigital number, since it uses as much as digits as its factorization.

258046643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 258046643 is about 16063.8302717627. The cubic root of 258046643 is about 636.6480372767.

The spelling of 258046643 in words is "two hundred fifty-eight million, forty-six thousand, six hundred forty-three".