216003126 has 8 divisors (see below), whose sum is σ = 432006264. Its totient is φ = 72001040.

The previous prime is 216003121. The next prime is 216003163. The reversal of 216003126 is 621300612.

It is a happy number.

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

216003126 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216003121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18000255 + ... + 18000266.

It is an arithmetic number, because the mean of its divisors is an integer number (54000783).

Almost surely, 2^216003126 is an apocalyptic number.

216003126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216003126 is a wasteful number, since it uses less digits than its factorization.

216003126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36000526.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 216003126 is about 14697.0448049940. The cubic root of 216003126 is about 600.0028944305.

Adding to 216003126 its reverse (621300612), we get a palindrome (837303738).

The spelling of 216003126 in words is "two hundred sixteen million, three thousand, one hundred twenty-six".