13780159 has 4 divisors (see below), whose sum is σ = 14040216. Its totient is φ = 13520104.

The previous prime is 13780127. The next prime is 13780163. The reversal of 13780159 is 95108731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95108731 = 619 ⋅153649.

It is a cyclic number.

It is not a de Polignac number, because 13780159 - 2⁵ = 13780127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13780189) 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 in 3 ways as a sum of consecutive naturals, for example, 129949 + ... + 130054.

It is an arithmetic number, because the mean of its divisors is an integer number (3510054).

Almost surely, 2^13780159 is an apocalyptic number.

13780159 is a deficient number, since it is larger than the sum of its proper divisors (260057).

13780159 is an equidigital number, since it uses as much as digits as its factorization.

13780159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260056.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 13780159 is about 3712.1636547976. The cubic root of 13780159 is about 239.7460218336.

The spelling of 13780159 in words is "thirteen million, seven hundred eighty thousand, one hundred fifty-nine".