16109312 has 18 divisors (see below), whose sum is σ = 32156208. Its totient is φ = 8054528.

The previous prime is 16109311. The next prime is 16109323. The reversal of 16109312 is 21390161.

It is a happy number.

16109312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16109312² = 519019866226688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16109311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31208 + ... + 31719.

It is an arithmetic number, because the mean of its divisors is an integer number (1786456).

Almost surely, 2^16109312 is an apocalyptic number.

It is an amenable number.

16109312 is a deficient number, since it is larger than the sum of its proper divisors (16046896).

16109312 is an frugal number, since it uses more digits than its factorization.

16109312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62943 (or 62929 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 16109312 is about 4013.6407412722. The cubic root of 16109312 is about 252.5567601052.

Adding to 16109312 its reverse (21390161), we get a palindrome (37499473).

The spelling of 16109312 in words is "sixteen million, one hundred nine thousand, three hundred twelve".