258135885 has 48 divisors (see below), whose sum is σ = 512703360. Its totient is φ = 117694080.

The previous prime is 258135883. The next prime is 258135887. The reversal of 258135885 is 588531852.

258135885 is a `hidden beast` number, since 2 + 58 + 13 + 588 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (258135883) and next prime (258135887).

It is not a de Polignac number, because 258135885 - 2¹ = 258135883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 258135885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258135883) 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 in 47 ways as a sum of consecutive naturals, for example, 153831 + ... + 155499.

It is an arithmetic number, because the mean of its divisors is an integer number (10681320).

Almost surely, 2^258135885 is an apocalyptic number.

It is an amenable number.

258135885 is a deficient number, since it is larger than the sum of its proper divisors (254567475).

258135885 is a wasteful number, since it uses less digits than its factorization.

258135885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178 (or 2175 counting only the distinct ones).

The product of its digits is 384000, while the sum is 45.

The square root of 258135885 is about 16066.6077626859. The cubic root of 258135885 is about 636.7214209036.

The spelling of 258135885 in words is "two hundred fifty-eight million, one hundred thirty-five thousand, eight hundred eighty-five".