217950130 has 16 divisors (see below), whose sum is σ = 398960640. Its totient is φ = 85702192.

The previous prime is 217950127. The next prime is 217950179. The reversal of 217950130 is 31059712.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184114 + ... + 185293.

It is an arithmetic number, because the mean of its divisors is an integer number (24935040).

Almost surely, 2^217950130 is an apocalyptic number.

217950130 is a deficient number, since it is larger than the sum of its proper divisors (181010510).

217950130 is a wasteful number, since it uses less digits than its factorization.

217950130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369473.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 217950130 is about 14763.1341523404. The cubic root of 217950130 is about 601.8002689099.

The spelling of 217950130 in words is "two hundred seventeen million, nine hundred fifty thousand, one hundred thirty".