216982147 has 8 divisors (see below), whose sum is σ = 236278800. Its totient is φ = 198473184.

The previous prime is 216982123. The next prime is 216982153. The reversal of 216982147 is 741289612.

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

It is a cyclic number.

It is not a de Polignac number, because 216982147 - 2⁷ = 216982019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216982187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196348 + ... + 197449.

It is an arithmetic number, because the mean of its divisors is an integer number (29534850).

Almost surely, 2^216982147 is an apocalyptic number.

216982147 is a deficient number, since it is larger than the sum of its proper divisors (19296653).

216982147 is a wasteful number, since it uses less digits than its factorization.

216982147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393845.

The product of its digits is 48384, while the sum is 40.

The square root of 216982147 is about 14730.3138798873. The cubic root of 216982147 is about 600.9080205084.

The spelling of 216982147 in words is "two hundred sixteen million, nine hundred eighty-two thousand, one hundred forty-seven".