13465643 has 2 divisors, whose sum is σ = 13465644. Its totient is φ = 13465642.

The previous prime is 13465631. The next prime is 13465663. The reversal of 13465643 is 34656431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13465643 - 2¹⁴ = 13449259 is a prime.

It is not a weakly prime, because it can be changed into another prime (13465663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6732821 + 6732822.

It is an arithmetic number, because the mean of its divisors is an integer number (6732822).

Almost surely, 2^13465643 is an apocalyptic number.

13465643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13465643 is an equidigital number, since it uses as much as digits as its factorization.

13465643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

The square root of 13465643 is about 3669.5562402013. The cubic root of 13465643 is about 237.9079923527.

The spelling of 13465643 in words is "thirteen million, four hundred sixty-five thousand, six hundred forty-three".