258105641 has 4 divisors (see below), whose sum is σ = 261958032. Its totient is φ = 254253252.

The previous prime is 258105629. The next prime is 258105667. The reversal of 258105641 is 146501852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 258105641 - 2²⁶ = 190996777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 258105598 and 258105607.

It is not an unprimeable number, because it can be changed into a prime (258105691) 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 3 ways as a sum of consecutive naturals, for example, 1926095 + ... + 1926228.

It is an arithmetic number, because the mean of its divisors is an integer number (65489508).

Almost surely, 2^258105641 is an apocalyptic number.

It is an amenable number.

258105641 is a deficient number, since it is larger than the sum of its proper divisors (3852391).

258105641 is an equidigital number, since it uses as much as digits as its factorization.

258105641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852390.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 258105641 is about 16065.6665283455. Note that the first 3 decimals coincide. The cubic root of 258105641 is about 636.6965531810.

The spelling of 258105641 in words is "two hundred fifty-eight million, one hundred five thousand, six hundred forty-one".