13155839 has 8 divisors (see below), whose sum is σ = 13769952. Its totient is φ = 12545280.

The previous prime is 13155827. The next prime is 13155851. The reversal of 13155839 is 93855131.

It is an interprime number because it is at equal distance from previous prime (13155827) and next prime (13155851).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13155839 - 2¹⁶ = 13090303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13155799 and 13155808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9299 + ... + 10619.

It is an arithmetic number, because the mean of its divisors is an integer number (1721244).

Almost surely, 2^13155839 is an apocalyptic number.

13155839 is a deficient number, since it is larger than the sum of its proper divisors (614113).

13155839 is a wasteful number, since it uses less digits than its factorization.

13155839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777.

The product of its digits is 16200, while the sum is 35.

The square root of 13155839 is about 3627.0978757128. The cubic root of 13155839 is about 236.0693023991.

The spelling of 13155839 in words is "thirteen million, one hundred fifty-five thousand, eight hundred thirty-nine".