13660312 has 8 divisors (see below), whose sum is σ = 25613100. Its totient is φ = 6830152.

The previous prime is 13660307. The next prime is 13660319. The reversal of 13660312 is 21306631.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 853762 + ... + 853777.

Almost surely, 2^13660312 is an apocalyptic number.

It is an amenable number.

13660312 is a deficient number, since it is larger than the sum of its proper divisors (11952788).

13660312 is a wasteful number, since it uses less digits than its factorization.

13660312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707545 (or 1707541 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13660312 is about 3695.9859307092. The cubic root of 13660312 is about 239.0489678672.

Adding to 13660312 its reverse (21306631), we get a palindrome (34966943).

The spelling of 13660312 in words is "thirteen million, six hundred sixty thousand, three hundred twelve".