258134009 has 12 divisors (see below), whose sum is σ = 305947044. Its totient is φ = 217080864.

The previous prime is 258134003. The next prime is 258134021. The reversal of 258134009 is 900431852.

It can be written as a sum of positive squares in 2 ways, for example, as 153685609 + 104448400 = 12397^2 + 10220^2 .

It is a de Polignac number, because none of the positive numbers 2^k-258134009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258134003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47102 + ... + 52295.

It is an arithmetic number, because the mean of its divisors is an integer number (25495587).

Almost surely, 2^258134009 is an apocalyptic number.

It is an amenable number.

258134009 is a deficient number, since it is larger than the sum of its proper divisors (47813035).

258134009 is an equidigital number, since it uses as much as digits as its factorization.

258134009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99464 (or 99457 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 258134009 is about 16066.5493806231. The cubic root of 258134009 is about 636.7198784444.

The spelling of 258134009 in words is "two hundred fifty-eight million, one hundred thirty-four thousand, nine".