13203140 has 12 divisors (see below), whose sum is σ = 27726636. Its totient is φ = 5281248.

The previous prime is 13203139. The next prime is 13203167. The reversal of 13203140 is 4130231.

13203140 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 2 ways, for example, as 7661824 + 5541316 = 2768^2 + 2354^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330059 + ... + 330098.

It is an arithmetic number, because the mean of its divisors is an integer number (2310553).

Almost surely, 2^13203140 is an apocalyptic number.

13203140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13203140 is an abundant number, since it is smaller than the sum of its proper divisors (14523496).

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

13203140 is a wasteful number, since it uses less digits than its factorization.

13203140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660166 (or 660164 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13203140 is about 3633.6125274993. The cubic root of 13203140 is about 236.3518881555.

Adding to 13203140 its reverse (4130231), we get a palindrome (17333371).

The spelling of 13203140 in words is "thirteen million, two hundred three thousand, one hundred forty".