258082691 has 2 divisors, whose sum is σ = 258082692. Its totient is φ = 258082690.

The previous prime is 258082663. The next prime is 258082709. The reversal of 258082691 is 196280852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258082691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (258082991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129041345 + 129041346.

It is an arithmetic number, because the mean of its divisors is an integer number (129041346).

Almost surely, 2^258082691 is an apocalyptic number.

258082691 is a deficient number, since it is larger than the sum of its proper divisors (1).

258082691 is an equidigital number, since it uses as much as digits as its factorization.

258082691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 258082691 is about 16064.9522563872. The cubic root of 258082691 is about 636.6776815555.

The spelling of 258082691 in words is "two hundred fifty-eight million, eighty-two thousand, six hundred ninety-one".