12578120 has 16 divisors (see below), whose sum is σ = 28300860. Its totient is φ = 5031232.

The previous prime is 12578117. The next prime is 12578129. The reversal of 12578120 is 2187521.

It can be written as a sum of positive squares in 2 ways, for example, as 12096484 + 481636 = 3478^2 + 694^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12578120.

It is not an unprimeable number, because it can be changed into a prime (12578129) 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, 157187 + ... + 157266.

Almost surely, 2^12578120 is an apocalyptic number.

12578120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12578120 is an abundant number, since it is smaller than the sum of its proper divisors (15722740).

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

12578120 is a wasteful number, since it uses less digits than its factorization.

12578120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314464 (or 314460 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 12578120 is about 3546.5645348703. The cubic root of 12578120 is about 232.5619058956.

The spelling of 12578120 in words is "twelve million, five hundred seventy-eight thousand, one hundred twenty".