31230214 has 4 divisors (see below), whose sum is σ = 46845324. Its totient is φ = 15615106.

The previous prime is 31230211. The next prime is 31230223. The reversal of 31230214 is 41203213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41203213 = 4159 ⋅9907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31230211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7807552 + ... + 7807555.

It is an arithmetic number, because the mean of its divisors is an integer number (11711331).

Almost surely, 2^31230214 is an apocalyptic number.

31230214 is a deficient number, since it is larger than the sum of its proper divisors (15615110).

31230214 is a wasteful number, since it uses less digits than its factorization.

31230214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15615109.

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

The square root of 31230214 is about 5588.3999498962. The cubic root of 31230214 is about 314.9137716444.

Adding to 31230214 its reverse (41203213), we get a palindrome (72433427).

The spelling of 31230214 in words is "thirty-one million, two hundred thirty thousand, two hundred fourteen".