12862147 has 4 divisors (see below), whose sum is σ = 13043376. Its totient is φ = 12680920.

The previous prime is 12862133. The next prime is 12862153. The reversal of 12862147 is 74126821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74126821 = 8461 ⋅8761.

It is a cyclic number.

It is not a de Polignac number, because 12862147 - 2⁷ = 12862019 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a house number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12862247) 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, 90508 + ... + 90649.

It is an arithmetic number, because the mean of its divisors is an integer number (3260844).

Almost surely, 2^12862147 is an apocalyptic number.

12862147 is a deficient number, since it is larger than the sum of its proper divisors (181229).

12862147 is an equidigital number, since it uses as much as digits as its factorization.

12862147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181228.

The product of its digits is 5376, while the sum is 31.

The square root of 12862147 is about 3586.3835545017. The cubic root of 12862147 is about 234.2993891093.

Adding to 12862147 its reverse (74126821), we get a palindrome (86988968).

The spelling of 12862147 in words is "twelve million, eight hundred sixty-two thousand, one hundred forty-seven".