12503732 has 12 divisors (see below), whose sum is σ = 22181796. Its totient is φ = 6166080.

The previous prime is 12503731. The next prime is 12503749. The reversal of 12503732 is 23730521.

It can be written as a sum of positive squares in 2 ways, for example, as 3225616 + 9278116 = 1796^2 + 3046^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12503698 and 12503707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21119 + ... + 21702.

It is an arithmetic number, because the mean of its divisors is an integer number (1848483).

Almost surely, 2^12503732 is an apocalyptic number.

It is an amenable number.

12503732 is a deficient number, since it is larger than the sum of its proper divisors (9678064).

12503732 is a wasteful number, since it uses less digits than its factorization.

12503732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42898 (or 42896 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 12503732 is about 3536.0616510463. The cubic root of 12503732 is about 232.1025359285.

The spelling of 12503732 in words is "twelve million, five hundred three thousand, seven hundred thirty-two".