216125303 has 4 divisors (see below), whose sum is σ = 216284088. Its totient is φ = 215966520.

The previous prime is 216125291. The next prime is 216125321. The reversal of 216125303 is 303521612.

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

It is a cyclic number.

It is not a de Polignac number, because 216125303 - 2⁸ = 216125047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216125363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77333 + ... + 80078.

It is an arithmetic number, because the mean of its divisors is an integer number (54071022).

Almost surely, 2^216125303 is an apocalyptic number.

216125303 is a deficient number, since it is larger than the sum of its proper divisors (158785).

216125303 is a wasteful number, since it uses less digits than its factorization.

216125303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158784.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 216125303 is about 14701.2007332735. The cubic root of 216125303 is about 600.1159988686.

Adding to 216125303 its reverse (303521612), we get a palindrome (519646915).

The spelling of 216125303 in words is "two hundred sixteen million, one hundred twenty-five thousand, three hundred three".