216146303 has 2 divisors, whose sum is σ = 216146304. Its totient is φ = 216146302.

The previous prime is 216146269. The next prime is 216146311. The reversal of 216146303 is 303641612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216146303 - 2²⁴ = 199369087 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216136303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108073151 + 108073152.

It is an arithmetic number, because the mean of its divisors is an integer number (108073152).

Almost surely, 2^216146303 is an apocalyptic number.

216146303 is a deficient number, since it is larger than the sum of its proper divisors (1).

216146303 is an equidigital number, since it uses as much as digits as its factorization.

216146303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 216146303 is about 14701.9149432991. The cubic root of 216146303 is about 600.1354351673.

Adding to 216146303 its reverse (303641612), we get a palindrome (519787915).

The spelling of 216146303 in words is "two hundred sixteen million, one hundred forty-six thousand, three hundred three".