13560138 has 12 divisors (see below), whose sum is σ = 29380338. Its totient is φ = 4520040.

The previous prime is 13560137. The next prime is 13560149. The reversal of 13560138 is 83106531.

It can be written as a sum of positive squares in only one way, i.e., 9162729 + 4397409 = 3027^2 + 2097^2 .

It is not an unprimeable number, because it can be changed into a prime (13560137) 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 5 ways as a sum of consecutive naturals, for example, 376653 + ... + 376688.

Almost surely, 2^13560138 is an apocalyptic number.

13560138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13560138 is an abundant number, since it is smaller than the sum of its proper divisors (15820200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13560138 is a wasteful number, since it uses less digits than its factorization.

13560138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753349 (or 753346 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 13560138 is about 3682.4092656846. The cubic root of 13560138 is about 238.4632012104.

Adding to 13560138 its reverse (83106531), we get a palindrome (96666669).

The spelling of 13560138 in words is "thirteen million, five hundred sixty thousand, one hundred thirty-eight".