31132214 has 4 divisors (see below), whose sum is σ = 46698324. Its totient is φ = 15566106.

The previous prime is 31132201. The next prime is 31132223. The reversal of 31132214 is 41223113.

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

It is a junction number, because it is equal to n+sod(n) for n = 31132192 and 31132201.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7783052 + ... + 7783055.

It is an arithmetic number, because the mean of its divisors is an integer number (11674581).

Almost surely, 2^31132214 is an apocalyptic number.

31132214 is a deficient number, since it is larger than the sum of its proper divisors (15566110).

31132214 is a wasteful number, since it uses less digits than its factorization.

31132214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15566109.

The product of its digits is 144, while the sum is 17.

The square root of 31132214 is about 5579.6248977866. The cubic root of 31132214 is about 314.5840280713.

Adding to 31132214 its reverse (41223113), we get a palindrome (72355327).

The spelling of 31132214 in words is "thirty-one million, one hundred thirty-two thousand, two hundred fourteen".