258108973 has 2 divisors, whose sum is σ = 258108974. Its totient is φ = 258108972.

The previous prime is 258108953. The next prime is 258108979. The reversal of 258108973 is 379801852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169052004 + 89056969 = 13002^2 + 9437^2 .

It is a cyclic number.

It is not a de Polignac number, because 258108973 - 2¹⁷ = 257977901 is a prime.

It is a super-2 number, since 2×258108973² = 133240483886229458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258108979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129054486 + 129054487.

It is an arithmetic number, because the mean of its divisors is an integer number (129054487).

Almost surely, 2^258108973 is an apocalyptic number.

It is an amenable number.

258108973 is a deficient number, since it is larger than the sum of its proper divisors (1).

258108973 is an equidigital number, since it uses as much as digits as its factorization.

258108973 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 258108973 is about 16065.7702274121. The cubic root of 258108973 is about 636.6992929685.

It can be divided in two parts, 258108 and 973, that added together give a square (259081 = 509²).

The spelling of 258108973 in words is "two hundred fifty-eight million, one hundred eight thousand, nine hundred seventy-three".