258120241 has 4 divisors (see below), whose sum is σ = 258235684. Its totient is φ = 258004800.

The previous prime is 258120223. The next prime is 258120253. The reversal of 258120241 is 142021852.

258120241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 194184225 + 63936016 = 13935^2 + 7996^2 .

It is a cyclic number.

It is not a de Polignac number, because 258120241 - 2⁵ = 258120209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258120211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54300 + ... + 58861.

It is an arithmetic number, because the mean of its divisors is an integer number (64558921).

Almost surely, 2^258120241 is an apocalyptic number.

It is an amenable number.

258120241 is a deficient number, since it is larger than the sum of its proper divisors (115443).

258120241 is a wasteful number, since it uses less digits than its factorization.

258120241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115442.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 258120241 is about 16066.1209070516. The cubic root of 258120241 is about 636.7085580774.

It can be divided in two parts, 2581 and 20241, that added together give a palindrome (22822).

The spelling of 258120241 in words is "two hundred fifty-eight million, one hundred twenty thousand, two hundred forty-one".