12851849 has 2 divisors, whose sum is σ = 12851850. Its totient is φ = 12851848.

The previous prime is 12851837. The next prime is 12851851. The reversal of 12851849 is 94815821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9985600 + 2866249 = 3160^2 + 1693^2 .

It is a cyclic number.

It is not a de Polignac number, because 12851849 - 2⁸ = 12851593 is a prime.

Together with 12851851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12851249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6425924 + 6425925.

It is an arithmetic number, because the mean of its divisors is an integer number (6425925).

Almost surely, 2^12851849 is an apocalyptic number.

It is an amenable number.

12851849 is a deficient number, since it is larger than the sum of its proper divisors (1).

12851849 is an equidigital number, since it uses as much as digits as its factorization.

12851849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 38.

The square root of 12851849 is about 3584.9475588912. The cubic root of 12851849 is about 234.2368422854.

The spelling of 12851849 in words is "twelve million, eight hundred fifty-one thousand, eight hundred forty-nine".