258143216 has 40 divisors (see below), whose sum is σ = 520831248. Its totient is φ = 123840000.

The previous prime is 258143203. The next prime is 258143219. The reversal of 258143216 is 612341852.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258143219) 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, 36791 + ... + 43241.

Almost surely, 2^258143216 is an apocalyptic number.

It is an amenable number.

258143216 is an abundant number, since it is smaller than the sum of its proper divisors (262688032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258143216 is a wasteful number, since it uses less digits than its factorization.

258143216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561 (or 6555 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 258143216 is about 16066.8359050561. The cubic root of 258143216 is about 636.7274484274.

The spelling of 258143216 in words is "two hundred fifty-eight million, one hundred forty-three thousand, two hundred sixteen".