12542427 has 12 divisors (see below), whose sum is σ = 18162144. Its totient is φ = 8340720.

The previous prime is 12542423. The next prime is 12542437. The reversal of 12542427 is 72424521.

It is not a de Polignac number, because 12542427 - 2² = 12542423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12542427.

It is not an unprimeable number, because it can be changed into a prime (12542423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2638 + ... + 5660.

It is an arithmetic number, because the mean of its divisors is an integer number (1513512).

Almost surely, 2^12542427 is an apocalyptic number.

12542427 is a deficient number, since it is larger than the sum of its proper divisors (5619717).

12542427 is a wasteful number, since it uses less digits than its factorization.

12542427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490 (or 3487 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 12542427 is about 3541.5289071247. The cubic root of 12542427 is about 232.3417167555.

Adding to 12542427 its reverse (72424521), we get a palindrome (84966948).

The spelling of 12542427 in words is "twelve million, five hundred forty-two thousand, four hundred twenty-seven".