12503124 has 36 divisors (see below), whose sum is σ = 32206356. Its totient is φ = 4088448.

The previous prime is 12503059. The next prime is 12503131. The reversal of 12503124 is 42130521.

12503124 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6656400 + 5846724 = 2580^2 + 2418^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12503097 and 12503106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1369 + ... + 5184.

It is an arithmetic number, because the mean of its divisors is an integer number (894621).

Almost surely, 2^12503124 is an apocalyptic number.

It is an amenable number.

12503124 is an abundant number, since it is smaller than the sum of its proper divisors (19703232).

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

12503124 is a wasteful number, since it uses less digits than its factorization.

12503124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6616 (or 6611 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12503124 is about 3535.9756786494. The cubic root of 12503124 is about 232.0987738349.

Adding to 12503124 its reverse (42130521), we get a palindrome (54633645).

The spelling of 12503124 in words is "twelve million, five hundred three thousand, one hundred twenty-four".