258127469 has 2 divisors, whose sum is σ = 258127470. Its totient is φ = 258127468.

The previous prime is 258127453. The next prime is 258127517. The reversal of 258127469 is 964721852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158886025 + 99241444 = 12605^2 + 9962^2 .

It is a cyclic number.

It is not a de Polignac number, because 258127469 - 2⁴ = 258127453 is a prime.

It is a super-2 number, since 2×258127469² = 133259580504691922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258127069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129063734 + 129063735.

It is an arithmetic number, because the mean of its divisors is an integer number (129063735).

Almost surely, 2^258127469 is an apocalyptic number.

It is an amenable number.

258127469 is a deficient number, since it is larger than the sum of its proper divisors (1).

258127469 is an equidigital number, since it uses as much as digits as its factorization.

258127469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 258127469 is about 16066.3458508772. The cubic root of 258127469 is about 636.7145011558.

The spelling of 258127469 in words is "two hundred fifty-eight million, one hundred twenty-seven thousand, four hundred sixty-nine".