12572147 has 4 divisors (see below), whose sum is σ = 14368176. Its totient is φ = 10776120.

The previous prime is 12572141. The next prime is 12572149. The reversal of 12572147 is 74127521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12572147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12572141) 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, 898004 + ... + 898017.

It is an arithmetic number, because the mean of its divisors is an integer number (3592044).

Almost surely, 2^12572147 is an apocalyptic number.

12572147 is a deficient number, since it is larger than the sum of its proper divisors (1796029).

12572147 is an equidigital number, since it uses as much as digits as its factorization.

12572147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796028.

The product of its digits is 3920, while the sum is 29.

The square root of 12572147 is about 3545.7223523564. The cubic root of 12572147 is about 232.5250876694.

Adding to 12572147 its reverse (74127521), we get a palindrome (86699668).

The spelling of 12572147 in words is "twelve million, five hundred seventy-two thousand, one hundred forty-seven".