13494643 has 4 divisors (see below), whose sum is σ = 13510368. Its totient is φ = 13478920.

The previous prime is 13494619. The next prime is 13494653. The reversal of 13494643 is 34649431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34649431 = 23 ⋅1506497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13494643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13494599 and 13494608.

It is not an unprimeable number, because it can be changed into a prime (13494653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6496 + ... + 8317.

It is an arithmetic number, because the mean of its divisors is an integer number (3377592).

Almost surely, 2^13494643 is an apocalyptic number.

13494643 is a deficient number, since it is larger than the sum of its proper divisors (15725).

13494643 is an equidigital number, since it uses as much as digits as its factorization.

13494643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15724.

The product of its digits is 31104, while the sum is 34.

The square root of 13494643 is about 3673.5055464774. The cubic root of 13494643 is about 238.0786584157.

The spelling of 13494643 in words is "thirteen million, four hundred ninety-four thousand, six hundred forty-three".