258681345 has 64 divisors (see below), whose sum is σ = 469615104. Its totient is φ = 120637440.

The previous prime is 258681343. The next prime is 258681359. The reversal of 258681345 is 543186852.

It is not a de Polignac number, because 258681345 - 2¹ = 258681343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258681297 and 258681306.

It is not an unprimeable number, because it can be changed into a prime (258681343) 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 63 ways as a sum of consecutive naturals, for example, 614235 + ... + 614655.

It is an arithmetic number, because the mean of its divisors is an integer number (7337736).

Almost surely, 2^258681345 is an apocalyptic number.

It is an amenable number.

258681345 is a deficient number, since it is larger than the sum of its proper divisors (210933759).

258681345 is a wasteful number, since it uses less digits than its factorization.

258681345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602.

The product of its digits is 230400, while the sum is 42.

The square root of 258681345 is about 16083.5737633152. The cubic root of 258681345 is about 637.1695850238.

The spelling of 258681345 in words is "two hundred fifty-eight million, six hundred eighty-one thousand, three hundred forty-five".