216145156 has 12 divisors (see below), whose sum is σ = 378375760. Its totient is φ = 108037800.

The previous prime is 216145129. The next prime is 216145169. The reversal of 216145156 is 651541612.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9535 + ... + 22873.

Almost surely, 2^216145156 is an apocalyptic number.

It is an amenable number.

216145156 is a deficient number, since it is larger than the sum of its proper divisors (162230604).

216145156 is a wasteful number, since it uses less digits than its factorization.

216145156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17394 (or 17392 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 216145156 is about 14701.8759347234. The cubic root of 216145156 is about 600.1343736077.

Adding to 216145156 its reverse (651541612), we get a palindrome (867686768).

The spelling of 216145156 in words is "two hundred sixteen million, one hundred forty-five thousand, one hundred fifty-six".