216130258 has 8 divisors (see below), whose sum is σ = 324576252. Its totient is φ = 107938176.

The previous prime is 216130249. The next prime is 216130261. The reversal of 216130258 is 852031612.

216130258 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 208138329 + 7991929 = 14427^2 + 2827^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61335 + ... + 64762.

Almost surely, 2^216130258 is an apocalyptic number.

216130258 is a deficient number, since it is larger than the sum of its proper divisors (108445994).

216130258 is a wasteful number, since it uses less digits than its factorization.

216130258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126956.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 216130258 is about 14701.3692559571. The cubic root of 216130258 is about 600.1205850231.

The spelling of 216130258 in words is "two hundred sixteen million, one hundred thirty thousand, two hundred fifty-eight".