16031312 has 40 divisors (see below), whose sum is σ = 34343040. Its totient is φ = 7188480.

The previous prime is 16031297. The next prime is 16031317. The reversal of 16031312 is 21313061.

16031312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16031317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13328 + ... + 14480.

It is an arithmetic number, because the mean of its divisors is an integer number (858576).

Almost surely, 2^16031312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16031312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17171520).

16031312 is an abundant number, since it is smaller than the sum of its proper divisors (18311728).

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

16031312 is a wasteful number, since it uses less digits than its factorization.

16031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1245 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 16031312 is about 4003.9120869470. The cubic root of 16031312 is about 252.1484805660.

Adding to 16031312 its reverse (21313061), we get a palindrome (37344373).

The spelling of 16031312 in words is "sixteen million, thirty-one thousand, three hundred twelve".