12988545 has 16 divisors (see below), whose sum is σ = 20827392. Its totient is φ = 6912000.

The previous prime is 12988543. The next prime is 12988579. The reversal of 12988545 is 54588921.

It is a happy number.

It is not a de Polignac number, because 12988545 - 2¹ = 12988543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12988497 and 12988506.

It is not an unprimeable number, because it can be changed into a prime (12988541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10689 + ... + 11841.

It is an arithmetic number, because the mean of its divisors is an integer number (1301712).

Almost surely, 2^12988545 is an apocalyptic number.

12988545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12988545 is a deficient number, since it is larger than the sum of its proper divisors (7838847).

12988545 is a wasteful number, since it uses less digits than its factorization.

12988545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912.

The product of its digits is 115200, while the sum is 42.

The square root of 12988545 is about 3603.9624026896. The cubic root of 12988545 is about 235.0643855570.

The spelling of 12988545 in words is "twelve million, nine hundred eighty-eight thousand, five hundred forty-five".