12899851 has 2 divisors, whose sum is σ = 12899852. Its totient is φ = 12899850.

The previous prime is 12899837. The next prime is 12899857. The reversal of 12899851 is 15899821.

12899851 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12899851 - 2¹¹ = 12897803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12899798 and 12899807.

It is not a weakly prime, because it can be changed into another prime (12899857) 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 as a sum of consecutive naturals, namely, 6449925 + 6449926.

It is an arithmetic number, because the mean of its divisors is an integer number (6449926).

Almost surely, 2^12899851 is an apocalyptic number.

12899851 is a deficient number, since it is larger than the sum of its proper divisors (1).

12899851 is an equidigital number, since it uses as much as digits as its factorization.

12899851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 43.

The square root of 12899851 is about 3591.6362566385. The cubic root of 12899851 is about 234.5281069172.

The spelling of 12899851 in words is "twelve million, eight hundred ninety-nine thousand, eight hundred fifty-one".