13207120 has 20 divisors (see below), whose sum is σ = 30706740. Its totient is φ = 5282816.

The previous prime is 13207099. The next prime is 13207121. The reversal of 13207120 is 2170231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1971216 + 11235904 = 1404^2 + 3352^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 13207094 and 13207103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13207121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82465 + ... + 82624.

It is an arithmetic number, because the mean of its divisors is an integer number (1535337).

Almost surely, 2^13207120 is an apocalyptic number.

13207120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13207120 is an abundant number, since it is smaller than the sum of its proper divisors (17499620).

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

13207120 is a wasteful number, since it uses less digits than its factorization.

13207120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165102 (or 165096 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 13207120 is about 3634.1601505712. The cubic root of 13207120 is about 236.3756346787.

Adding to 13207120 its reverse (2170231), we get a palindrome (15377351).

The spelling of 13207120 in words is "thirteen million, two hundred seven thousand, one hundred twenty".