12543274 has 8 divisors (see below), whose sum is σ = 18860868. Its totient is φ = 6256320.

The previous prime is 12543269. The next prime is 12543277. The reversal of 12543274 is 47234521.

It can be written as a sum of positive squares in 2 ways, for example, as 12425625 + 117649 = 3525^2 + 343^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12543277) 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, 6607 + ... + 8290.

Almost surely, 2^12543274 is an apocalyptic number.

12543274 is a deficient number, since it is larger than the sum of its proper divisors (6317594).

12543274 is a wasteful number, since it uses less digits than its factorization.

12543274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15320.

The product of its digits is 6720, while the sum is 28.

The square root of 12543274 is about 3541.6484862278. The cubic root of 12543274 is about 232.3469467110.

Adding to 12543274 its reverse (47234521), we get a palindrome (59777795).

The spelling of 12543274 in words is "twelve million, five hundred forty-three thousand, two hundred seventy-four".