258419081 has 2 divisors, whose sum is σ = 258419082. Its totient is φ = 258419080.

The previous prime is 258418987. The next prime is 258419101. The reversal of 258419081 is 180914852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 258405625 + 13456 = 16075^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 258419081 - 2¹⁰ = 258418057 is a prime.

It is a super-2 number, since 2×258419081² = 133560842849769122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (258413081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129209540 + 129209541.

It is an arithmetic number, because the mean of its divisors is an integer number (129209541).

Almost surely, 2^258419081 is an apocalyptic number.

It is an amenable number.

258419081 is a deficient number, since it is larger than the sum of its proper divisors (1).

258419081 is an equidigital number, since it uses as much as digits as its factorization.

258419081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 258419081 is about 16075.4185326541. The cubic root of 258419081 is about 636.9541808173.

The spelling of 258419081 in words is "two hundred fifty-eight million, four hundred nineteen thousand, eighty-one".