13851916 has 36 divisors (see below), whose sum is σ = 27136704. Its totient is φ = 6177600.

The previous prime is 13851883. The next prime is 13851967. The reversal of 13851916 is 61915831.

13851916 = T₃₄₁ + T₃₄₂ + ... + T₄₉₆.

13851916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20626 + ... + 21286.

Almost surely, 2^13851916 is an apocalyptic number.

It is an amenable number.

13851916 is a deficient number, since it is larger than the sum of its proper divisors (13284788).

13851916 is a wasteful number, since it uses less digits than its factorization.

13851916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 707 counting only the distinct ones).

The product of its digits is 6480, while the sum is 34.

The square root of 13851916 is about 3721.8162232974. The cubic root of 13851916 is about 240.1614423032.

It can be divided in two parts, 13 and 851916, that added together give a square (851929 = 923²).

The spelling of 13851916 in words is "thirteen million, eight hundred fifty-one thousand, nine hundred sixteen".