12539141 has 4 divisors (see below), whose sum is σ = 12573132. Its totient is φ = 12505152.

The previous prime is 12539113. The next prime is 12539161. The reversal of 12539141 is 14193521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14193521 = 17 ⋅834913.

It can be written as a sum of positive squares in 2 ways, for example, as 3960100 + 8579041 = 1990^2 + 2929^2 .

It is a cyclic number.

It is not a de Polignac number, because 12539141 - 2¹⁰ = 12538117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12539141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12539161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16436 + ... + 17181.

It is an arithmetic number, because the mean of its divisors is an integer number (3143283).

Almost surely, 2^12539141 is an apocalyptic number.

It is an amenable number.

12539141 is a deficient number, since it is larger than the sum of its proper divisors (33991).

12539141 is an equidigital number, since it uses as much as digits as its factorization.

12539141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33990.

The product of its digits is 1080, while the sum is 26.

The square root of 12539141 is about 3541.0649528073. The cubic root of 12539141 is about 232.3214245222.

The spelling of 12539141 in words is "twelve million, five hundred thirty-nine thousand, one hundred forty-one".