12812077 has 2 divisors, whose sum is σ = 12812078. Its totient is φ = 12812076.

The previous prime is 12812071. The next prime is 12812087. The reversal of 12812077 is 77021821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9647236 + 3164841 = 3106^2 + 1779^2 .

It is a cyclic number.

It is not a de Polignac number, because 12812077 - 2¹⁵ = 12779309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12812071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406038 + 6406039.

It is an arithmetic number, because the mean of its divisors is an integer number (6406039).

Almost surely, 2^12812077 is an apocalyptic number.

It is an amenable number.

12812077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12812077 is an equidigital number, since it uses as much as digits as its factorization.

12812077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 12812077 is about 3579.3961781284. The cubic root of 12812077 is about 233.9949654358.

Adding to 12812077 its reverse (77021821), we get a palindrome (89833898).

The spelling of 12812077 in words is "twelve million, eight hundred twelve thousand, seventy-seven".