12881051 has 2 divisors, whose sum is σ = 12881052. Its totient is φ = 12881050.

The previous prime is 12881047. The next prime is 12881117. The reversal of 12881051 is 15018821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12881051 - 2² = 12881047 is a prime.

It is a Chen prime.

It is equal to p₈₄₂₀₅₇ and since 12881051 and 842057 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12881051.

It is not a weakly prime, because it can be changed into another prime (12881041) 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, 6440525 + 6440526.

It is an arithmetic number, because the mean of its divisors is an integer number (6440526).

Almost surely, 2^12881051 is an apocalyptic number.

12881051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12881051 is an equidigital number, since it uses as much as digits as its factorization.

12881051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 12881051 is about 3589.0181108487. The cubic root of 12881051 is about 234.4141192421.

Adding to 12881051 its reverse (15018821), we get a palindrome (27899872).

The spelling of 12881051 in words is "twelve million, eight hundred eighty-one thousand, fifty-one".