12852131 has 4 divisors (see below), whose sum is σ = 12892992. Its totient is φ = 12811272.

The previous prime is 12852121. The next prime is 12852137. The reversal of 12852131 is 13125821.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12852131 - 2⁶ = 12852067 is a prime.

It is a super-2 number, since 2×12852131² = 330354542482322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12852097 and 12852106.

It is not an unprimeable number, because it can be changed into a prime (12852137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19955 + ... + 20588.

It is an arithmetic number, because the mean of its divisors is an integer number (3223248).

Almost surely, 2^12852131 is an apocalyptic number.

12852131 is a deficient number, since it is larger than the sum of its proper divisors (40861).

12852131 is an equidigital number, since it uses as much as digits as its factorization.

12852131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40860.

The product of its digits is 480, while the sum is 23.

The square root of 12852131 is about 3584.9868897947. The cubic root of 12852131 is about 234.2385555099.

Adding to 12852131 its reverse (13125821), we get a palindrome (25977952).

The spelling of 12852131 in words is "twelve million, eight hundred fifty-two thousand, one hundred thirty-one".