13603122 has 48 divisors (see below), whose sum is σ = 32294808. Its totient is φ = 4112640.

The previous prime is 13603067. The next prime is 13603129. The reversal of 13603122 is 22130631.

13603122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4835601 + 8767521 = 2199^2 + 2961^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13603095 and 13603104.

It is not an unprimeable number, because it can be changed into a prime (13603129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13798 + ... + 14750.

Almost surely, 2^13603122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13603122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16147404).

13603122 is an abundant number, since it is smaller than the sum of its proper divisors (18691686).

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

13603122 is a wasteful number, since it uses less digits than its factorization.

13603122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 13603122 is about 3688.2410441835. The cubic root of 13603122 is about 238.7149019612.

Adding to 13603122 its reverse (22130631), we get a palindrome (35733753).

The spelling of 13603122 in words is "thirteen million, six hundred three thousand, one hundred twenty-two".