13819155 has 16 divisors (see below), whose sum is σ = 25269504. Its totient is φ = 6317280.

The previous prime is 13819133. The next prime is 13819171. The reversal of 13819155 is 55191831.

It is not a de Polignac number, because 13819155 - 2¹² = 13815059 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 65701 + ... + 65910.

It is an arithmetic number, because the mean of its divisors is an integer number (1579344).

Almost surely, 2^13819155 is an apocalyptic number.

13819155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13819155 is a deficient number, since it is larger than the sum of its proper divisors (11450349).

13819155 is a wasteful number, since it uses less digits than its factorization.

13819155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131626.

The product of its digits is 5400, while the sum is 33.

The square root of 13819155 is about 3717.4124065000. The cubic root of 13819155 is about 239.9719585293.

The spelling of 13819155 in words is "thirteen million, eight hundred nineteen thousand, one hundred fifty-five".