13538455 has 12 divisors (see below), whose sum is σ = 18898920. Its totient is φ = 9283344.

The previous prime is 13538453. The next prime is 13538471. The reversal of 13538455 is 55483531.

It is not a de Polignac number, because 13538455 - 2¹ = 13538453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13538455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13538453) 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 11 ways as a sum of consecutive naturals, for example, 27385 + ... + 27874.

It is an arithmetic number, because the mean of its divisors is an integer number (1574910).

Almost surely, 2^13538455 is an apocalyptic number.

13538455 is a deficient number, since it is larger than the sum of its proper divisors (5360465).

13538455 is an equidigital number, since it uses as much as digits as its factorization.

13538455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55278 (or 55271 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 13538455 is about 3679.4639555240. The cubic root of 13538455 is about 238.3360305279.

The spelling of 13538455 in words is "thirteen million, five hundred thirty-eight thousand, four hundred fifty-five".