30133213 has 4 divisors (see below), whose sum is σ = 32872608. Its totient is φ = 27393820.

The previous prime is 30133199. The next prime is 30133217. The reversal of 30133213 is 31233103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30133213 - 2⁹ = 30132701 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 (30133217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1369681 + ... + 1369702.

It is an arithmetic number, because the mean of its divisors is an integer number (8218152).

Almost surely, 2^30133213 is an apocalyptic number.

It is an amenable number.

30133213 is a deficient number, since it is larger than the sum of its proper divisors (2739395).

30133213 is a wasteful number, since it uses less digits than its factorization.

30133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739394.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 30133213 is about 5489.3727328357. The cubic root of 30133213 is about 311.1824868218.

Adding to 30133213 its reverse (31233103), we get a palindrome (61366316).

It can be divided in two parts, 3013 and 3213, that added together give a palindrome (6226).

The spelling of 30133213 in words is "thirty million, one hundred thirty-three thousand, two hundred thirteen".