12545988 has 48 divisors (see below), whose sum is σ = 36032640. Its totient is φ = 3308544.

The previous prime is 12545987. The next prime is 12545989. The reversal of 12545988 is 88954521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12545987) and next prime (12545989).

It is a super-2 number, since 2×12545988² = 314803629792288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (12545987) 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, 4653 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (750680).

Almost surely, 2^12545988 is an apocalyptic number.

It is an amenable number.

12545988 is an abundant number, since it is smaller than the sum of its proper divisors (23486652).

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

12545988 is a wasteful number, since it uses less digits than its factorization.

12545988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11516 (or 11514 counting only the distinct ones).

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

The square root of 12545988 is about 3542.0316204122. The cubic root of 12545988 is about 232.3637032116.

The spelling of 12545988 in words is "twelve million, five hundred forty-five thousand, nine hundred eighty-eight".