216054 has 16 divisors (see below), whose sum is σ = 480240. Its totient is φ = 72000.

The previous prime is 216037. The next prime is 216061. The reversal of 216054 is 450612.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 216054.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1947 + ... + 2054.

It is an arithmetic number, because the mean of its divisors is an integer number (30015).

216054 is a Friedman number, since it can be written as 60^(2+1)+54, using all its digits and the basic arithmetic operations.

2²¹⁶⁰⁵⁴ is an apocalyptic number.

216054 is an abundant number, since it is smaller than the sum of its proper divisors (264186).

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

216054 is a wasteful number, since it uses less digits than its factorization.

216054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012 (or 4006 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 216054 is about 464.8160926646. The cubic root of 216054 is about 60.0049995834.

Adding to 216054 its reverse (450612), we get a palindrome (666666).

It can be divided in two parts, 21605 and 4, that added together give a square (21609 = 147²).

The spelling of 216054 in words is "two hundred sixteen thousand, fifty-four".