30133216 has 12 divisors (see below), whose sum is σ = 59324832. Its totient is φ = 15066592.

The previous prime is 30133199. The next prime is 30133217. The reversal of 30133216 is 61233103.

It is a junction number, because it is equal to n+sod(n) for n = 30133193 and 30133202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470800 + ... + 470863.

It is an arithmetic number, because the mean of its divisors is an integer number (4943736).

Almost surely, 2^30133216 is an apocalyptic number.

It is an amenable number.

30133216 is a deficient number, since it is larger than the sum of its proper divisors (29191616).

30133216 is an equidigital number, since it uses as much as digits as its factorization.

30133216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941673 (or 941665 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 30133216 is about 5489.3730060910. The cubic root of 30133216 is about 311.1824971487.

Adding to 30133216 its reverse (61233103), we get a palindrome (91366319).

The spelling of 30133216 in words is "thirty million, one hundred thirty-three thousand, two hundred sixteen".