31144112 has 10 divisors (see below), whose sum is σ = 60341748. Its totient is φ = 15572048.

The previous prime is 31144111. The next prime is 31144147. The reversal of 31144112 is 21144113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31144111) 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 as a sum of consecutive naturals, namely, 973238 + ... + 973269.

Almost surely, 2^31144112 is an apocalyptic number.

It is an amenable number.

31144112 is a deficient number, since it is larger than the sum of its proper divisors (29197636).

31144112 is a wasteful number, since it uses less digits than its factorization.

31144112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946515 (or 1946509 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 31144112 is about 5580.6909966419. The cubic root of 31144112 is about 314.6240985061.

Adding to 31144112 its reverse (21144113), we get a palindrome (52288225).

Subtracting from 31144112 its reverse (21144113), we obtain a palindrome (9999999).

The spelling of 31144112 in words is "thirty-one million, one hundred forty-four thousand, one hundred twelve".