12738548 has 6 divisors (see below), whose sum is σ = 22292466. Its totient is φ = 6369272.

The previous prime is 12738533. The next prime is 12738563. The reversal of 12738548 is 84583721.

It is an interprime number because it is at equal distance from previous prime (12738533) and next prime (12738563).

It can be written as a sum of positive squares in only one way, i.e., 7907344 + 4831204 = 2812^2 + 2198^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1592315 + ... + 1592322.

It is an arithmetic number, because the mean of its divisors is an integer number (3715411).

Almost surely, 2^12738548 is an apocalyptic number.

It is an amenable number.

12738548 is a deficient number, since it is larger than the sum of its proper divisors (9553918).

12738548 is a wasteful number, since it uses less digits than its factorization.

12738548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184641 (or 3184639 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 12738548 is about 3569.1102532704. The cubic root of 12738548 is about 233.5464710103.

The spelling of 12738548 in words is "twelve million, seven hundred thirty-eight thousand, five hundred forty-eight".