13189555 has 4 divisors (see below), whose sum is σ = 15827472. Its totient is φ = 10551640.

The previous prime is 13189549. The next prime is 13189559. The reversal of 13189555 is 55598131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55598131 = 83 ⋅669857.

It is not a de Polignac number, because 13189555 - 2⁵ = 13189523 is a prime.

It is a super-2 number, since 2×13189555² = 347928722196050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13189559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318951 + ... + 1318960.

It is an arithmetic number, because the mean of its divisors is an integer number (3956868).

Almost surely, 2^13189555 is an apocalyptic number.

13189555 is a deficient number, since it is larger than the sum of its proper divisors (2637917).

13189555 is an equidigital number, since it uses as much as digits as its factorization.

13189555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637916.

The product of its digits is 27000, while the sum is 37.

The square root of 13189555 is about 3631.7426946302. The cubic root of 13189555 is about 236.2707977921.

The spelling of 13189555 in words is "thirteen million, one hundred eighty-nine thousand, five hundred fifty-five".