13251120 has 40 divisors (see below), whose sum is σ = 41079216. Its totient is φ = 3533568.

The previous prime is 13251107. The next prime is 13251131. The reversal of 13251120 is 2115231.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13251120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27367 + ... + 27846.

Almost surely, 2^13251120 is an apocalyptic number.

13251120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13251120 is an abundant number, since it is smaller than the sum of its proper divisors (27828096).

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

13251120 is a wasteful number, since it uses less digits than its factorization.

13251120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55229 (or 55223 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 13251120 is about 3640.2087852210. The cubic root of 13251120 is about 236.6378417141.

Adding to 13251120 its reverse (2115231), we get a palindrome (15366351).

The spelling of 13251120 in words is "thirteen million, two hundred fifty-one thousand, one hundred twenty".