216124633 has 4 divisors (see below), whose sum is σ = 218352820. Its totient is φ = 213896448.

The previous prime is 216124607. The next prime is 216124651. The reversal of 216124633 is 336421612.

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

It can be written as a sum of positive squares in 2 ways, for example, as 175509504 + 40615129 = 13248^2 + 6373^2 .

It is a cyclic number.

It is not a de Polignac number, because 216124633 - 2²¹ = 214027481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216124333) 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, 1113948 + ... + 1114141.

It is an arithmetic number, because the mean of its divisors is an integer number (54588205).

Almost surely, 2^216124633 is an apocalyptic number.

It is an amenable number.

216124633 is a deficient number, since it is larger than the sum of its proper divisors (2228187).

216124633 is an equidigital number, since it uses as much as digits as its factorization.

216124633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228186.

The product of its digits is 5184, while the sum is 28.

The square root of 216124633 is about 14701.1779460015. The cubic root of 216124633 is about 600.1153787374.

The spelling of 216124633 in words is "two hundred sixteen million, one hundred twenty-four thousand, six hundred thirty-three".