31301214 has 32 divisors (see below), whose sum is σ = 71801856. Its totient is φ = 8911200.

The previous prime is 31301197. The next prime is 31301239. The reversal of 31301214 is 41210313.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31301193 and 31301202.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12139 + ... + 14489.

It is an arithmetic number, because the mean of its divisors is an integer number (2243808).

Almost surely, 2^31301214 is an apocalyptic number.

31301214 is an abundant number, since it is smaller than the sum of its proper divisors (40500642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31301214 is a wasteful number, since it uses less digits than its factorization.

31301214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 31301214 is about 5594.7487879260. The cubic root of 31301214 is about 315.1522368190.

Adding to 31301214 its reverse (41210313), we get a palindrome (72511527).

Subtracting 31301214 from its reverse (41210313), we obtain a palindrome (9909099).

The spelling of 31301214 in words is "thirty-one million, three hundred one thousand, two hundred fourteen".