258870319 has 2 divisors, whose sum is σ = 258870320. Its totient is φ = 258870318.

The previous prime is 258870317. The next prime is 258870361. The reversal of 258870319 is 913078852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258870319 - 2¹ = 258870317 is a prime.

It is a super-2 number, since 2×258870319² = 134027684118323522, which contains 22 as substring.

Together with 258870317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258870317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129435159 + 129435160.

It is an arithmetic number, because the mean of its divisors is an integer number (129435160).

Almost surely, 2^258870319 is an apocalyptic number.

258870319 is a deficient number, since it is larger than the sum of its proper divisors (1).

258870319 is an equidigital number, since it uses as much as digits as its factorization.

258870319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 258870319 is about 16089.4474423456. The cubic root of 258870319 is about 637.3247040261.

The spelling of 258870319 in words is "two hundred fifty-eight million, eight hundred seventy thousand, three hundred nineteen".