30331214 has 4 divisors (see below), whose sum is σ = 45496824. Its totient is φ = 15165606.

The previous prime is 30331207. The next prime is 30331243. The reversal of 30331214 is 41213303.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30331192 and 30331201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7582802 + ... + 7582805.

It is an arithmetic number, because the mean of its divisors is an integer number (11374206).

Almost surely, 2^30331214 is an apocalyptic number.

30331214 is a deficient number, since it is larger than the sum of its proper divisors (15165610).

30331214 is a wasteful number, since it uses less digits than its factorization.

30331214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15165609.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 30331214 is about 5507.3781420927. The cubic root of 30331214 is about 311.8625778215.

Adding to 30331214 its reverse (41213303), we get a palindrome (71544517).

The spelling of 30331214 in words is "thirty million, three hundred thirty-one thousand, two hundred fourteen".