12738526 has 8 divisors (see below), whose sum is σ = 19149120. Its totient is φ = 6355488.

The previous prime is 12738521. The next prime is 12738533. The reversal of 12738526 is 62583721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12738491 and 12738500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12738521) 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, 5691 + ... + 7606.

It is an arithmetic number, because the mean of its divisors is an integer number (2393640).

Almost surely, 2^12738526 is an apocalyptic number.

12738526 is a deficient number, since it is larger than the sum of its proper divisors (6410594).

12738526 is a wasteful number, since it uses less digits than its factorization.

12738526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13778.

The product of its digits is 20160, while the sum is 34.

The square root of 12738526 is about 3569.1071712685. The cubic root of 12738526 is about 233.5463365621.

The spelling of 12738526 in words is "twelve million, seven hundred thirty-eight thousand, five hundred twenty-six".