216154 has 16 divisors (see below), whose sum is σ = 350208. Its totient is φ = 99792.

The previous prime is 216149. The next prime is 216157. The reversal of 216154 is 451612.

216154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a pancake number, because a pancake can be divided into 216154 parts by 657 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (216157) 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, 1639 + ... + 1765.

It is an arithmetic number, because the mean of its divisors is an integer number (21888).

2²¹⁶¹⁵⁴ is an apocalyptic number.

216154 is a deficient number, since it is larger than the sum of its proper divisors (134054).

216154 is a wasteful number, since it uses less digits than its factorization.

216154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189.

The product of its digits is 240, while the sum is 19.

The square root of 216154 is about 464.9236496458. The cubic root of 216154 is about 60.0142558718.

Adding to 216154 its reverse (451612), we get a palindrome (667766).

The spelling of 216154 in words is "two hundred sixteen thousand, one hundred fifty-four".