12745120 has 24 divisors (see below), whose sum is σ = 30110724. Its totient is φ = 5097984.

The previous prime is 12745099. The next prime is 12745127. The reversal of 12745120 is 2154721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12588304 + 156816 = 3548^2 + 396^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12745091 and 12745100.

It is not an unprimeable number, because it can be changed into a prime (12745127) 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, 39669 + ... + 39988.

Almost surely, 2^12745120 is an apocalyptic number.

12745120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12745120 is an abundant number, since it is smaller than the sum of its proper divisors (17365604).

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

12745120 is an equidigital number, since it uses as much as digits as its factorization.

12745120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79672 (or 79664 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 12745120 is about 3570.0308121920. The cubic root of 12745120 is about 233.5866274324.

Adding to 12745120 its reverse (2154721), we get a palindrome (14899841).

The spelling of 12745120 in words is "twelve million, seven hundred forty-five thousand, one hundred twenty".