258290719 has 2 divisors, whose sum is σ = 258290720. Its totient is φ = 258290718.

The previous prime is 258290689. The next prime is 258290743. The reversal of 258290719 is 917092852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 258290719 - 2¹³ = 258282527 is a prime.

It is a super-2 number, since 2×258290719² = 133428191043073922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258290779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129145359 + 129145360.

It is an arithmetic number, because the mean of its divisors is an integer number (129145360).

Almost surely, 2^258290719 is an apocalyptic number.

258290719 is a deficient number, since it is larger than the sum of its proper divisors (1).

258290719 is an equidigital number, since it uses as much as digits as its factorization.

258290719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 258290719 is about 16071.4255434918. The cubic root of 258290719 is about 636.8487006629.

The spelling of 258290719 in words is "two hundred fifty-eight million, two hundred ninety thousand, seven hundred nineteen".