10013544 has 112 divisors (see below), whose sum is σ = 30101220. Its totient is φ = 3110400.

The previous prime is 10013543. The next prime is 10013573. The reversal of 10013544 is 44531001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8191044 + 1822500 = 2862^2 + 1350^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10013543) 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 27 ways as a sum of consecutive naturals, for example, 99094 + ... + 99194.

Almost surely, 2^10013544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10013544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15050610).

10013544 is an abundant number, since it is smaller than the sum of its proper divisors (20087676).

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

10013544 is a wasteful number, since it uses less digits than its factorization.

10013544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 10013544 is about 3164.4184299805. The cubic root of 10013544 is about 215.5406906689.

Adding to 10013544 its reverse (44531001), we get a palindrome (54544545).

The spelling of 10013544 in words is "ten million, thirteen thousand, five hundred forty-four".