12761899 has 2 divisors, whose sum is σ = 12761900. Its totient is φ = 12761898.

The previous prime is 12761893. The next prime is 12761909. The reversal of 12761899 is 99816721.

12761899 is nontrivially palindromic in base 11.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12761899 - 2³ = 12761891 is a prime.

It is not a weakly prime, because it can be changed into another prime (12761891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6380949 + 6380950.

It is an arithmetic number, because the mean of its divisors is an integer number (6380950).

Almost surely, 2^12761899 is an apocalyptic number.

12761899 is a deficient number, since it is larger than the sum of its proper divisors (1).

12761899 is an equidigital number, since it uses as much as digits as its factorization.

12761899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 43.

The square root of 12761899 is about 3572.3800189789. The cubic root of 12761899 is about 233.6890883830.

It can be divided in two parts, 127 and 61899, that added together give a palindrome (62026).

The spelling of 12761899 in words is "twelve million, seven hundred sixty-one thousand, eight hundred ninety-nine".