13662043 has 2 divisors, whose sum is σ = 13662044. Its totient is φ = 13662042.

The previous prime is 13662031. The next prime is 13662053. The reversal of 13662043 is 34026631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13662043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13661999 and 13662017.

It is not a weakly prime, because it can be changed into another prime (13662013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6831021 + 6831022.

It is an arithmetic number, because the mean of its divisors is an integer number (6831022).

Almost surely, 2^13662043 is an apocalyptic number.

13662043 is a deficient number, since it is larger than the sum of its proper divisors (1).

13662043 is an equidigital number, since it uses as much as digits as its factorization.

13662043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 13662043 is about 3696.2200962605. The cubic root of 13662043 is about 239.0590646665.

Adding to 13662043 its reverse (34026631), we get a palindrome (47688674).

The spelling of 13662043 in words is "thirteen million, six hundred sixty-two thousand, forty-three".