13119643 has 2 divisors, whose sum is σ = 13119644. Its totient is φ = 13119642.

The previous prime is 13119641. The next prime is 13119647. The reversal of 13119643 is 34691131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13119643 - 2¹ = 13119641 is a prime.

Together with 13119641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13119641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6559821 + 6559822.

It is an arithmetic number, because the mean of its divisors is an integer number (6559822).

Almost surely, 2^13119643 is an apocalyptic number.

13119643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13119643 is an equidigital number, since it uses as much as digits as its factorization.

13119643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The square root of 13119643 is about 3622.1047748512. The cubic root of 13119643 is about 235.8526023481.

The spelling of 13119643 in words is "thirteen million, one hundred nineteen thousand, six hundred forty-three".