216231002 has 8 divisors (see below), whose sum is σ = 349296276. Its totient is φ = 99798912.

The previous prime is 216230969. The next prime is 216231011. The reversal of 216231002 is 200132612.

216231002 is digitally balanced in base 3, because in such base 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 195972001 + 20259001 = 13999^2 + 4501^2 .

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, 4158263 + ... + 4158314.

Almost surely, 2^216231002 is an apocalyptic number.

216231002 is a deficient number, since it is larger than the sum of its proper divisors (133065274).

216231002 is a wasteful number, since it uses less digits than its factorization.

216231002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8316592.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 216231002 is about 14704.7952042863. The cubic root of 216231002 is about 600.2138145373.

Adding to 216231002 its reverse (200132612), we get a palindrome (416363614).

The spelling of 216231002 in words is "two hundred sixteen million, two hundred thirty-one thousand, two".