31330214 has 8 divisors (see below), whose sum is σ = 47091000. Its totient is φ = 15633216.

The previous prime is 31330193. The next prime is 31330217. The reversal of 31330214 is 41203313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31330192 and 31330201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31330217) 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, 14699 + ... + 16694.

It is an arithmetic number, because the mean of its divisors is an integer number (5886375).

Almost surely, 2^31330214 is an apocalyptic number.

31330214 is a deficient number, since it is larger than the sum of its proper divisors (15760786).

31330214 is a wasteful number, since it uses less digits than its factorization.

31330214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31894.

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

The square root of 31330214 is about 5597.3399039186. The cubic root of 31330214 is about 315.2495343639.

Adding to 31330214 its reverse (41203313), we get a palindrome (72533527).

The spelling of 31330214 in words is "thirty-one million, three hundred thirty thousand, two hundred fourteen".