13778059 has 4 divisors (see below), whose sum is σ = 14503240. Its totient is φ = 13052880.

The previous prime is 13778057. The next prime is 13778071. The reversal of 13778059 is 95087731.

13778059 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13778059 - 2¹ = 13778057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13778053) 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, 362562 + ... + 362599.

It is an arithmetic number, because the mean of its divisors is an integer number (3625810).

Almost surely, 2^13778059 is an apocalyptic number.

13778059 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13778059 is a deficient number, since it is larger than the sum of its proper divisors (725181).

13778059 is an equidigital number, since it uses as much as digits as its factorization.

13778059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725180.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 13778059 is about 3711.8807901117. The cubic root of 13778059 is about 239.7338426751.

The spelling of 13778059 in words is "thirteen million, seven hundred seventy-eight thousand, fifty-nine".