258158673 has 12 divisors (see below), whose sum is σ = 381991428. Its totient is φ = 167907840.

The previous prime is 258158653. The next prime is 258158717. The reversal of 258158673 is 376851852.

258158673 is a `hidden beast` number, since 2 + 581 + 5 + 8 + 67 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32798529 + 225360144 = 5727^2 + 15012^2 .

It is not a de Polignac number, because 258158673 - 2¹³ = 258150481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258158603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349440 + ... + 350177.

It is an arithmetic number, because the mean of its divisors is an integer number (31832619).

Almost surely, 2^258158673 is an apocalyptic number.

It is an amenable number.

258158673 is a deficient number, since it is larger than the sum of its proper divisors (123832755).

258158673 is a wasteful number, since it uses less digits than its factorization.

258158673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699664 (or 699661 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 258158673 is about 16067.3169197598. The cubic root of 258158673 is about 636.7401567474.

The spelling of 258158673 in words is "two hundred fifty-eight million, one hundred fifty-eight thousand, six hundred seventy-three".