216324142 has 8 divisors (see below), whose sum is σ = 332032536. Its totient is φ = 105646632.

The previous prime is 216324103. The next prime is 216324161. The reversal of 216324142 is 241423612.

It is a happy number.

216324142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×216324142² = 93592268824072328, which contains 22 as substring.

It is a congruent number.

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, 1257613 + ... + 1257784.

It is an arithmetic number, because the mean of its divisors is an integer number (41504067).

Almost surely, 2^216324142 is an apocalyptic number.

216324142 is a deficient number, since it is larger than the sum of its proper divisors (115708394).

216324142 is a wasteful number, since it uses less digits than its factorization.

216324142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515442.

The product of its digits is 2304, while the sum is 25.

The square root of 216324142 is about 14707.9618574431. The cubic root of 216324142 is about 600.2999814750.

Adding to 216324142 its reverse (241423612), we get a palindrome (457747754).

The spelling of 216324142 in words is "two hundred sixteen million, three hundred twenty-four thousand, one hundred forty-two".