12481900 has 18 divisors (see below), whose sum is σ = 27085940. Its totient is φ = 4992720.

The previous prime is 12481891. The next prime is 12481901. The reversal of 12481900 is 918421.

It is a happy number.

It is a super-3 number, since 3×12481900³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12481901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62310 + ... + 62509.

Almost surely, 2^12481900 is an apocalyptic number.

12481900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12481900 is an abundant number, since it is smaller than the sum of its proper divisors (14604040).

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

12481900 is a wasteful number, since it uses less digits than its factorization.

12481900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124833 (or 124826 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12481900 is about 3532.9732520924. The cubic root of 12481900 is about 231.9673705597.

The spelling of 12481900 in words is "twelve million, four hundred eighty-one thousand, nine hundred".