258648945 has 8 divisors (see below), whose sum is σ = 413838336. Its totient is φ = 137946096.

The previous prime is 258648937. The next prime is 258648947. The reversal of 258648945 is 549846852.

It is a happy number.

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

It is not a de Polignac number, because 258648945 - 2³ = 258648937 is a prime.

It is a super-2 number, since 2×258648945² = 133798553499226050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (258648947) 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 7 ways as a sum of consecutive naturals, for example, 8621617 + ... + 8621646.

It is an arithmetic number, because the mean of its divisors is an integer number (51729792).

Almost surely, 2^258648945 is an apocalyptic number.

It is an amenable number.

258648945 is a deficient number, since it is larger than the sum of its proper divisors (155189391).

258648945 is a wasteful number, since it uses less digits than its factorization.

258648945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17243271.

The product of its digits is 2764800, while the sum is 51.

The square root of 258648945 is about 16082.5664929451. The cubic root of 258648945 is about 637.1429819502.

The spelling of 258648945 in words is "two hundred fifty-eight million, six hundred forty-eight thousand, nine hundred forty-five".