13951816 has 16 divisors (see below), whose sum is σ = 26213040. Its totient is φ = 6961680.

The previous prime is 13951811. The next prime is 13951831. The reversal of 13951816 is 61815931.

It is not an unprimeable number, because it can be changed into a prime (13951811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3211 + ... + 6181.

It is an arithmetic number, because the mean of its divisors is an integer number (1638315).

Almost surely, 2^13951816 is an apocalyptic number.

It is an amenable number.

13951816 is a deficient number, since it is larger than the sum of its proper divisors (12261224).

13951816 is a wasteful number, since it uses less digits than its factorization.

13951816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564 (or 3560 counting only the distinct ones).

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

The square root of 13951816 is about 3735.2129792021. The cubic root of 13951816 is about 240.7374078954.

The spelling of 13951816 in words is "thirteen million, nine hundred fifty-one thousand, eight hundred sixteen".