258195613 has 8 divisors (see below), whose sum is σ = 287645400. Its totient is φ = 230115648.

The previous prime is 258195599. The next prime is 258195647. The reversal of 258195613 is 316591852.

It can be written as a sum of positive squares in 4 ways, for example, as 19740249 + 238455364 = 4443^2 + 15442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258195613 - 2⁹ = 258195101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258195673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342058 + ... + 342811.

It is an arithmetic number, because the mean of its divisors is an integer number (35955675).

Almost surely, 2^258195613 is an apocalyptic number.

It is an amenable number.

258195613 is a deficient number, since it is larger than the sum of its proper divisors (29449787).

258195613 is a wasteful number, since it uses less digits than its factorization.

258195613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684911.

The product of its digits is 64800, while the sum is 40.

The square root of 258195613 is about 16068.4664171787. The cubic root of 258195613 is about 636.7705257440.

The spelling of 258195613 in words is "two hundred fifty-eight million, one hundred ninety-five thousand, six hundred thirteen".