216144126 has 56 divisors (see below), whose sum is σ = 530332344. Its totient is φ = 65493360.

The previous prime is 216144113. The next prime is 216144127. The reversal of 216144126 is 621441612.

216144126 is a `hidden beast` number, since 2 + 1 + 614 + 41 + 2 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216144126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216144127) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9300 + ... + 22776.

Almost surely, 2^216144126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216144126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265166172).

216144126 is an abundant number, since it is smaller than the sum of its proper divisors (314188218).

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

216144126 is a wasteful number, since it uses less digits than its factorization.

216144126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13508 (or 13493 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 216144126 is about 14701.8409051384. The cubic root of 216144126 is about 600.1334203295.

Adding to 216144126 its reverse (621441612), we get a palindrome (837585738).

The spelling of 216144126 in words is "two hundred sixteen million, one hundred forty-four thousand, one hundred twenty-six".