31214230 has 8 divisors (see below), whose sum is σ = 56185632. Its totient is φ = 12485688.

The previous prime is 31214219. The next prime is 31214231. The reversal of 31214230 is 3241213.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1560702 + ... + 1560721.

It is an arithmetic number, because the mean of its divisors is an integer number (7023204).

Almost surely, 2^31214230 is an apocalyptic number.

31214230 is a deficient number, since it is larger than the sum of its proper divisors (24971402).

31214230 is a wasteful number, since it uses less digits than its factorization.

31214230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121430.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31214230 is about 5586.9696616323. The cubic root of 31214230 is about 314.8600369212.

Adding to 31214230 its reverse (3241213), we get a palindrome (34455443).

The spelling of 31214230 in words is "thirty-one million, two hundred fourteen thousand, two hundred thirty".