12853949 has 4 divisors (see below), whose sum is σ = 12874464. Its totient is φ = 12833436.

The previous prime is 12853877. The next prime is 12853963. The reversal of 12853949 is 94935821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12853949 - 2⁸ = 12853693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12853969) 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, 9287 + ... + 10580.

It is an arithmetic number, because the mean of its divisors is an integer number (3218616).

Almost surely, 2^12853949 is an apocalyptic number.

It is an amenable number.

12853949 is a deficient number, since it is larger than the sum of its proper divisors (20515).

12853949 is an equidigital number, since it uses as much as digits as its factorization.

12853949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20514.

The product of its digits is 77760, while the sum is 41.

The square root of 12853949 is about 3585.2404382412. The cubic root of 12853949 is about 234.2495997384.

The spelling of 12853949 in words is "twelve million, eight hundred fifty-three thousand, nine hundred forty-nine".