12734523 has 8 divisors (see below), whose sum is σ = 18866000. Its totient is φ = 8489664.

The previous prime is 12734471. The next prime is 12734537. The reversal of 12734523 is 32543721.

It is not a de Polignac number, because 12734523 - 2¹⁰ = 12733499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 471649 = 12734523 / (1 + 2 + 7 + 3 + 4 + 5 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12734573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235798 + ... + 235851.

It is an arithmetic number, because the mean of its divisors is an integer number (2358250).

Almost surely, 2^12734523 is an apocalyptic number.

12734523 is a deficient number, since it is larger than the sum of its proper divisors (6131477).

12734523 is an equidigital number, since it uses as much as digits as its factorization.

12734523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471658 (or 471652 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 12734523 is about 3568.5463427003. The cubic root of 12734523 is about 233.5218705203.

The spelling of 12734523 in words is "twelve million, seven hundred thirty-four thousand, five hundred twenty-three".