13140663 has 4 divisors (see below), whose sum is σ = 17520888. Its totient is φ = 8760440.

The previous prime is 13140649. The next prime is 13140689. The reversal of 13140663 is 36604131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13140663 - 2⁶ = 13140599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140163) 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, 2190108 + ... + 2190113.

It is an arithmetic number, because the mean of its divisors is an integer number (4380222).

Almost surely, 2^13140663 is an apocalyptic number.

13140663 is a deficient number, since it is larger than the sum of its proper divisors (4380225).

13140663 is an equidigital number, since it uses as much as digits as its factorization.

13140663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380224.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 13140663 is about 3625.0052413755. The cubic root of 13140663 is about 235.9784944016.

Adding to 13140663 its reverse (36604131), we get a palindrome (49744794).

The spelling of 13140663 in words is "thirteen million, one hundred forty thousand, six hundred sixty-three".