216352142 has 4 divisors (see below), whose sum is σ = 324528216. Its totient is φ = 108176070.

The previous prime is 216352067. The next prime is 216352153. The reversal of 216352142 is 241253612.

It is a happy number.

216352142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54088034 + ... + 54088037.

It is an arithmetic number, because the mean of its divisors is an integer number (81132054).

Almost surely, 2^216352142 is an apocalyptic number.

216352142 is a deficient number, since it is larger than the sum of its proper divisors (108176074).

216352142 is a wasteful number, since it uses less digits than its factorization.

216352142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108176073.

The product of its digits is 2880, while the sum is 26.

The square root of 216352142 is about 14708.9136920440. The cubic root of 216352142 is about 600.3258803787.

The spelling of 216352142 in words is "two hundred sixteen million, three hundred fifty-two thousand, one hundred forty-two".