12531300 has 36 divisors (see below), whose sum is σ = 36258096. Its totient is φ = 3341600.

The previous prime is 12531283. The next prime is 12531301. The reversal of 12531300 is 313521.

It is a happy number.

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 12531300.

It is not an unprimeable number, because it can be changed into a prime (12531301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20586 + ... + 21185.

Almost surely, 2^12531300 is an apocalyptic number.

12531300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12531300 is an abundant number, since it is smaller than the sum of its proper divisors (23726796).

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

12531300 is a wasteful number, since it uses less digits than its factorization.

12531300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41788 (or 41781 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 12531300 is about 3539.9576268650. The cubic root of 12531300 is about 232.2729891967.

Adding to 12531300 its reverse (313521), we get a palindrome (12844821).

The spelling of 12531300 in words is "twelve million, five hundred thirty-one thousand, three hundred".