13078243 has 2 divisors, whose sum is σ = 13078244. Its totient is φ = 13078242.

The previous prime is 13078231. The next prime is 13078309. The reversal of 13078243 is 34287031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13078243 - 2¹³ = 13070051 is a prime.

It is not a weakly prime, because it can be changed into another prime (13078543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6539121 + 6539122.

It is an arithmetic number, because the mean of its divisors is an integer number (6539122).

Almost surely, 2^13078243 is an apocalyptic number.

13078243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13078243 is an equidigital number, since it uses as much as digits as its factorization.

13078243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 13078243 is about 3616.3853500422. The cubic root of 13078243 is about 235.6042575206.

The spelling of 13078243 in words is "thirteen million, seventy-eight thousand, two hundred forty-three".