217141996 has 6 divisors (see below), whose sum is σ = 379998500. Its totient is φ = 108570996.

The previous prime is 217141943. The next prime is 217141997. The reversal of 217141996 is 699141712.

It is not an unprimeable number, because it can be changed into a prime (217141997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27142746 + ... + 27142753.

Almost surely, 2^217141996 is an apocalyptic number.

It is an amenable number.

217141996 is a deficient number, since it is larger than the sum of its proper divisors (162856504).

217141996 is a wasteful number, since it uses less digits than its factorization.

217141996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54285503 (or 54285501 counting only the distinct ones).

The product of its digits is 27216, while the sum is 40.

The square root of 217141996 is about 14735.7387327545. The cubic root of 217141996 is about 601.0555456537.

The spelling of 217141996 in words is "two hundred seventeen million, one hundred forty-one thousand, nine hundred ninety-six".